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101010000001000 = 2353101010000001
BaseRepresentation
bin10110111101111000111001…
…001010110011011111101000
3111020122110110120111122021011
4112331320321022303133220
5101214421440000013000
6554455204155553304
730163505651406166
oct2675707112633750
9436573416448234
10101010000001000
112a204111747902
12b3b44b875b834
1344492820cc52c
141ad2ca53bc236
15ba277dde42ba
hex5bde392b37e8

101010000001000 has 32 divisors (see below), whose sum is σ = 236363400004680. Its totient is φ = 40404000000000.

The previous prime is 101010000000991. The next prime is 101010000001007. The reversal of 101010000001000 is 100000010101.

It can be written as a sum of positive squares in 4 ways, for example, as 26220400983396 + 74789599017604 = 5120586^2 + 8648098^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101010000001007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50504999001 + ... + 50505001000.

Almost surely, 2101010000001000 is an apocalyptic number.

101010000001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101010000001000 is an abundant number, since it is smaller than the sum of its proper divisors (135353400003680).

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

101010000001000 is a wasteful number, since it uses less digits than its factorization.

101010000001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101010000022 (or 101010000008 counting only the distinct ones).

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

Adding to 101010000001000 its reverse (100000010101), we get a palindrome (101110000011101).

The spelling of 101010000001000 in words is "one hundred one trillion, ten billion, one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 101010000001 202020000002 404040000004 505050000005 808080000008 1010100000010 2020200000020 2525250000025 4040400000040 5050500000050 10101000000100 12626250000125 20202000000200 25252500000250 50505000000500 101010000001000