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1010001010000 = 245410129901
BaseRepresentation
bin11101011001010001100…
…00000101110101010000
310120112222201002101001211
432230220300011311100
5113021440224310000
62051553230505504
7132653523635413
oct16545060056520
93515881071054
101010001010000
1135a38026a814
121438b3365294
137432024a938
1436c5478db7a
151b4147737ba
hexeb28c05d50

1010001010000 has 150 divisors (see below), whose sum is σ = 2470013628566. Its totient is φ = 399960000000.

The previous prime is 1010001009991. The next prime is 1010001010001. The reversal of 1010001010000 is 101000101.

It can be written as a sum of positive squares in 15 ways, for example, as 306858386704 + 703142623296 = 553948^2 + 838536^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010001010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 102005050 + ... + 102014950.

Almost surely, 21010001010000 is an apocalyptic number.

1010001010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010001010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235006814283).

1010001010000 is an abundant number, since it is smaller than the sum of its proper divisors (1460012618566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1010001010000 is an frugal number, since it uses more digits than its factorization.

1010001010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131 (or 10009 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 4.

Adding to 1010001010000 its reverse (101000101), we get a palindrome (1010102010101).

1010001010000 divided by its reverse (101000101) gives a 4-th power (10000 = 104).

The spelling of 1010001010000 in words is "one trillion, ten billion, one million, ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 101 125 200 202 250 400 404 500 505 625 808 1000 1010 1250 1616 2000 2020 2500 2525 4040 5000 5050 8080 9901 10000 10100 10201 12625 19802 20200 20402 25250 39604 40400 40804 49505 50500 51005 63125 79208 81608 99010 101000 102010 126250 158416 163216 198020 202000 204020 247525 252500 255025 396040 408040 495050 505000 510050 792080 816080 990100 1000001 1010000 1020100 1237625 1275125 1980200 2000002 2040200 2475250 2550250 3960400 4000004 4080400 4950500 5000005 5100500 6188125 6375625 8000008 9901000 10000010 10201000 12376250 12751250 16000016 19802000 20000020 20402000 24752500 25000025 25502500 40000040 49505000 50000050 51005000 80000080 99010000 100000100 101000101 102010000 125000125 200000200 202000202 250000250 400000400 404000404 500000500 505000505 625000625 808000808 1000001000 1010001010 1250001250 1616001616 2000002000 2020002020 2500002500 2525002525 4040004040 5000005000 5050005050 8080008080 10000010000 10100010100 12625012625 20200020200 25250025250 40400040400 50500050500 63125063125 101000101000 126250126250 202000202000 252500252500 505000505000 1010001010000