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40864524839 = 139547292837
BaseRepresentation
bin100110000011101101…
…110010101000100111
310220110220210221121222
4212003231302220213
51132142304243324
630434540330555
72644442505245
oct460355625047
9126426727558
1040864524839
111636aa60386
127b05543a5b
133b13207b18
141d99331795
1510e285755e
hex983b72a27

40864524839 has 4 divisors (see below), whose sum is σ = 40864957224. Its totient is φ = 40864092456.

The previous prime is 40864524769. The next prime is 40864524871. The reversal of 40864524839 is 93842546804.

It is a happy number.

40864524839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40864524839 - 216 = 40864459303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40864520839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6872 + ... + 285965.

It is an arithmetic number, because the mean of its divisors is an integer number (10216239306).

Almost surely, 240864524839 is an apocalyptic number.

40864524839 is a deficient number, since it is larger than the sum of its proper divisors (432385).

40864524839 is a wasteful number, since it uses less digits than its factorization.

40864524839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432384.

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 40864524839 in words is "forty billion, eight hundred sixty-four million, five hundred twenty-four thousand, eight hundred thirty-nine".

Divisors: 1 139547 292837 40864524839