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20000500002 = 23271634092381
BaseRepresentation
bin10010101000000111…
…110110100100100010
31220121212110200010100
4102220013312210202
5311430112000002
613104344043230
71305426305430
oct225007664442
956555420110
1020000500002
11853384074a
123a62163516
131b698213b2
14d7a3b5d50
157c0d1911c
hex4a81f6922

20000500002 has 96 divisors (see below), whose sum is σ = 49971692160. Its totient is φ = 5663105280.

The previous prime is 20000499943. The next prime is 20000500007.

20000500002 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20000500007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8398852 + ... + 8401232.

It is an arithmetic number, because the mean of its divisors is an integer number (520538460).

Almost surely, 220000500002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000500002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24985846080).

20000500002 is an abundant number, since it is smaller than the sum of its proper divisors (29971192158).

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

20000500002 is a wasteful number, since it uses less digits than its factorization.

20000500002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The spelling of 20000500002 in words is "twenty billion, five hundred thousand, two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 163 326 409 489 818 978 1141 1227 1467 2282 2381 2454 2863 2934 3423 3681 4762 5726 6846 7143 7362 8589 10269 14286 16667 17178 20538 21429 25767 33334 42858 50001 51534 66667 100002 133334 150003 200001 300006 388103 400002 466669 600003 776206 933338 973829 1164309 1200006 1400007 1947658 2328618 2716721 2800014 2921487 3492927 4200021 5433442 5842974 6816803 6985854 8150163 8400042 8764461 13633606 16300326 17528922 20450409 24450489 40900818 48900978 61351227 122702454 158734127 317468254 476202381 952404762 1111138889 1428607143 2222277778 2857214286 3333416667 6666833334 10000250001 20000500002