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80138846525 = 5223139371907
BaseRepresentation
bin100101010100010100…
…1011100000100111101
321122212000101012121212
41022220221130010331
52303111021042100
6100452033334205
75534625645653
oct1125051340475
9248760335555
1080138846525
1130a94320581
1213646407365
137731b2a11a
143c4339cdd3
152140798635
hex12a8a5c13d

80138846525 has 12 divisors (see below), whose sum is σ = 103692699552. Its totient is φ = 61323638640.

The previous prime is 80138846507. The next prime is 80138846537. The reversal of 80138846525 is 52564883108.

It is not a de Polignac number, because 80138846525 - 28 = 80138846269 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 69685379 + ... + 69686528.

It is an arithmetic number, because the mean of its divisors is an integer number (8641058296).

Almost surely, 280138846525 is an apocalyptic number.

It is an amenable number.

80138846525 is a deficient number, since it is larger than the sum of its proper divisors (23553853027).

80138846525 is a wasteful number, since it uses less digits than its factorization.

80138846525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139371940 (or 139371935 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 80138846525 in words is "eighty billion, one hundred thirty-eight million, eight hundred forty-six thousand, five hundred twenty-five".

Divisors: 1 5 23 25 115 575 139371907 696859535 3205553861 3484297675 16027769305 80138846525