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40792543021 = 2310340942101
BaseRepresentation
bin100101111111011011…
…001100111100101101
310220021220100220010201
4211333123030330231
51132020342334041
630423445433501
72642606615566
oct457733147455
9126256326121
1040792543021
111633336637a
127aa540b891
133b01324229
141d8d95516d
1510db389631
hex97f6ccf2d

40792543021 has 16 divisors (see below), whose sum is σ = 43085502720. Its totient is φ = 38544739200.

The previous prime is 40792543003. The next prime is 40792543037. The reversal of 40792543021 is 12034529704.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40792543021 is a prime.

It is a super-2 number, since 2×407925430212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40792543621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 947871 + ... + 989971.

It is an arithmetic number, because the mean of its divisors is an integer number (2692843920).

Almost surely, 240792543021 is an apocalyptic number.

It is an amenable number.

40792543021 is a deficient number, since it is larger than the sum of its proper divisors (2292959699).

40792543021 is a wasteful number, since it uses less digits than its factorization.

40792543021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42636.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 40792543021 in words is "forty billion, seven hundred ninety-two million, five hundred forty-three thousand, twenty-one".

Divisors: 1 23 103 409 2369 9407 42101 42127 968323 968921 4336403 17219309 99737269 396044107 1773588827 40792543021