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39742424793 = 3331371283297
BaseRepresentation
bin100101000000110101…
…010100011011011001
310210120201101100202000
4211000311110123121
51122343030043133
630131334031213
72604566015451
oct450065243331
9123521340660
1039742424793
1115944620a75
1278517a8509
1339948b9bb6
141cd02bcd61
1510790a8413
hex940d546d9

39742424793 has 32 divisors (see below), whose sum is σ = 62419614720. Its totient is φ = 24947274240.

The previous prime is 39742424779. The next prime is 39742424797.

39742424793 is a `hidden beast` number, since 3 + 97 + 42 + 42 + 479 + 3 = 666.

39742424793 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 39742424793 - 216 = 39742359257 is a prime.

It is a super-2 number, since 2×397424247932 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39742424797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610680 + ... + 672617.

It is an arithmetic number, because the mean of its divisors is an integer number (1950612960).

Almost surely, 239742424793 is an apocalyptic number.

It is an amenable number.

39742424793 is a deficient number, since it is larger than the sum of its proper divisors (22677189927).

39742424793 is a wasteful number, since it uses less digits than its factorization.

39742424793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283374 (or 1283368 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The spelling of 39742424793 in words is "thirty-nine billion, seven hundred forty-two million, four hundred twenty-four thousand, seven hundred ninety-three".

Divisors: 1 3 9 27 31 37 93 111 279 333 837 999 1147 3441 10323 30969 1283297 3849891 11549673 34649019 39782207 47481989 119346621 142445967 358039863 427337901 1074119589 1282013703 1471941659 4415824977 13247474931 39742424793