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85179928038 = 2323957592589
BaseRepresentation
bin100111101010100011…
…1101000110111100110
322010212100001200102120
41033111013220313212
52343422030144123
6103044153250410
76103560304422
oct1172507506746
9263770050376
1085179928038
1133140937747
1214612703a06
1380563408aa
1441a0ab5b82
1523381172e3
hex13d51e8de6

85179928038 has 16 divisors (see below), whose sum is σ = 170367254640. Its totient is φ = 28392076256.

The previous prime is 85179928007. The next prime is 85179928039. The reversal of 85179928038 is 83082997158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85179928039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152553 + ... + 440036.

It is an arithmetic number, because the mean of its divisors is an integer number (10647953415).

Almost surely, 285179928038 is an apocalyptic number.

85179928038 is an abundant number, since it is smaller than the sum of its proper divisors (85187326602).

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

85179928038 is a wasteful number, since it uses less digits than its factorization.

85179928038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616551.

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 85179928038 in words is "eighty-five billion, one hundred seventy-nine million, nine hundred twenty-eight thousand, thirty-eight".

Divisors: 1 2 3 6 23957 47914 71871 143742 592589 1185178 1777767 3555534 14196654673 28393309346 42589964019 85179928038