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20013011032 = 237357375197
BaseRepresentation
bin10010101000110111…
…100101000001011000
31220122202000022000211
4102220313211001120
5311441312323112
613105512140504
71305640533640
oct225067450130
956582008024
1020013011032
11853a906443
123a66397734
131b6c2b1b81
14d7bd11520
157c1e8b0a7
hex4a8de5058

20013011032 has 16 divisors (see below), whose sum is σ = 42885023760. Its totient is φ = 8577004704.

The previous prime is 20013011021. The next prime is 20013011111. The reversal of 20013011032 is 23011031002.

It is a super-2 number, since 2×200130110322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178687543 + ... + 178687654.

It is an arithmetic number, because the mean of its divisors is an integer number (2680313985).

Almost surely, 220013011032 is an apocalyptic number.

It is an amenable number.

20013011032 is an abundant number, since it is smaller than the sum of its proper divisors (22872012728).

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

20013011032 is a wasteful number, since it uses less digits than its factorization.

20013011032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357375210 (or 357375206 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20013011032 its reverse (23011031002), we get a palindrome (43024042034).

The spelling of 20013011032 in words is "twenty billion, thirteen million, eleven thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 357375197 714750394 1429500788 2501626379 2859001576 5003252758 10006505516 20013011032