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20330232032 = 251157756341
BaseRepresentation
bin10010111011110001…
…101011100011100000
31221110211220210102202
4102323301223203200
5313114014411112
613201203232332
71316542056335
oct227361534340
957424823382
1020330232032
118692982260
123b346786a8
131bbcc2c1c6
14dac0c898c
157dec4c6c2
hex4bbc6b8e0

20330232032 has 24 divisors (see below), whose sum is σ = 43663794552. Its totient is φ = 9241014400.

The previous prime is 20330232023. The next prime is 20330232049. The reversal of 20330232032 is 23023203302.

It is a junction number, because it is equal to n+sod(n) for n = 20330231995 and 20330232013.

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, 28877819 + ... + 28878522.

It is an arithmetic number, because the mean of its divisors is an integer number (1819324773).

Almost surely, 220330232032 is an apocalyptic number.

20330232032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20330232032 is an abundant number, since it is smaller than the sum of its proper divisors (23333562520).

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

20330232032 is a wasteful number, since it uses less digits than its factorization.

20330232032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57756362 (or 57756354 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 20330232032 its reverse (23023203302), we get a palindrome (43353435334).

The spelling of 20330232032 in words is "twenty billion, three hundred thirty million, two hundred thirty-two thousand, thirty-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 57756341 115512682 231025364 462050728 635319751 924101456 1270639502 1848202912 2541279004 5082558008 10165116016 20330232032