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101010002000 = 245351019901
BaseRepresentation
bin101111000010010101…
…0100101000001010000
3100122201120010202112012
41132010222211001100
53123332030031000
6114223042522052
710204056564515
oct1360452450120
9318646122465
10101010002000
11399245705a6
12176b0066328
1396a9b3c36b
144c6325330c
152962c44735
hex1784aa5050

101010002000 has 80 divisors (see below), whose sum is σ = 244314739344. Its totient is φ = 40392000000.

The previous prime is 101010001997. The next prime is 101010002003. The reversal of 101010002000 is 200010101.

It is a happy number.

101010002000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (101010001997) and next prime (101010002003).

It can be written as a sum of positive squares in 8 ways, for example, as 41554007104 + 59455994896 = 203848^2 + 243836^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101010002003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10197050 + ... + 10206950.

Almost surely, 2101010002000 is an apocalyptic number.

101010002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101010002000 is an abundant number, since it is smaller than the sum of its proper divisors (143304737344).

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

101010002000 is an equidigital number, since it uses as much as digits as its factorization.

101010002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025 (or 15009 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 101010002000 its reverse (200010101), we get a palindrome (101210012101).

The spelling of 101010002000 in words is "one hundred one billion, ten million, two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 5101 9901 10202 19802 20404 25505 39604 40808 49505 51010 79208 81616 99010 102020 127525 158416 198020 204040 247525 255050 396040 408080 495050 510100 637625 792080 990100 1020200 1237625 1275250 1980200 2040400 2475250 2550500 3960400 4950500 5101000 9901000 10202000 19802000 50505001 101010002 202020004 252525005 404040008 505050010 808080016 1010100020 1262625025 2020200040 2525250050 4040400080 5050500100 6313125125 10101000200 12626250250 20202000400 25252500500 50505001000 101010002000