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80171738957846 = 21971061191782819
BaseRepresentation
bin10010001110101001110000…
…000001011000100000010110
3101111212100021100000000110102
4102032221300001120200112
541002013210133122341
6442302215522254102
722613134300145414
oct2216516001304026
9344770240000412
1080171738957846
11235aa709629058
128ba99a11b7332
133597216155c33
1415b24935742b4
159406b6c80c9b
hex48ea70058816

80171738957846 has 16 divisors (see below), whose sum is σ = 120981972774960. Its totient is φ = 39844798267680.

The previous prime is 80171738957813. The next prime is 80171738957881. The reversal of 80171738957846 is 64875983717108.

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, 95473376 + ... + 96309443.

It is an arithmetic number, because the mean of its divisors is an integer number (7561373298435).

Almost surely, 280171738957846 is an apocalyptic number.

80171738957846 is a deficient number, since it is larger than the sum of its proper divisors (40810233817114).

80171738957846 is a wasteful number, since it uses less digits than its factorization.

80171738957846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191784079.

The product of its (nonzero) digits is 568995840, while the sum is 74.

The spelling of 80171738957846 in words is "eighty trillion, one hundred seventy-one billion, seven hundred thirty-eight million, nine hundred fifty-seven thousand, eight hundred forty-six".

Divisors: 1 2 197 394 1061 2122 209017 418034 191782819 383565638 37781215343 75562430686 203481570959 406963141918 40085869478923 80171738957846