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85029283974 = 23109712918457
BaseRepresentation
bin100111100110000100…
…0111110100010000110
322010110211121011121210
41033030020332202012
52343114444041344
6103021212352250
76100050663045
oct1171410764206
9263424534553
1085029283974
11330738a5618
1214590175686
1380310777ab
144188aa055c
152329cabdb9
hex13cc23e886

85029283974 has 16 divisors (see below), whose sum is σ = 170213602608. Its totient is φ = 28317255552.

The previous prime is 85029283943. The next prime is 85029284003. The reversal of 85029283974 is 47938292058.

It is a happy number.

It is a super-2 number, since 2×850292839742 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6452647 + ... + 6465810.

It is an arithmetic number, because the mean of its divisors is an integer number (10638350163).

Almost surely, 285029283974 is an apocalyptic number.

85029283974 is an abundant number, since it is smaller than the sum of its proper divisors (85184318634).

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

85029283974 is a wasteful number, since it uses less digits than its factorization.

85029283974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12919559.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 85029283974 in words is "eighty-five billion, twenty-nine million, two hundred eighty-three thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 1097 2194 3291 6582 12918457 25836914 38755371 77510742 14171547329 28343094658 42514641987 85029283974