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87998352625 = 5347112913267
BaseRepresentation
bin101000111110100011…
…1000100110011110001
322102010202102111010101
41101331013010303301
52420210034241000
6104231554032401
76233452440631
oct1217507046361
9272122374111
1087998352625
1134357859867
121507a578701
1383b521c151
14438b1346c1
152450790e6a
hex147d1c4cf1

87998352625 has 32 divisors (see below), whose sum is σ = 112266385920. Its totient is φ = 68834620800.

The previous prime is 87998352601. The next prime is 87998352649. The reversal of 87998352625 is 52625389978.

It is an interprime number because it is at equal distance from previous prime (87998352601) and next prime (87998352649).

It is not a de Polignac number, because 87998352625 - 229 = 87461481713 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6626242 + ... + 6639508.

It is an arithmetic number, because the mean of its divisors is an integer number (3508324560).

Almost surely, 287998352625 is an apocalyptic number.

It is an amenable number.

87998352625 is a deficient number, since it is larger than the sum of its proper divisors (24268033295).

87998352625 is a wasteful number, since it uses less digits than its factorization.

87998352625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14458 (or 14448 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 64.

The spelling of 87998352625 in words is "eighty-seven billion, nine hundred ninety-eight million, three hundred fifty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 47 125 235 1129 1175 5645 5875 13267 28225 53063 66335 141125 265315 331675 623549 1326575 1658375 3117745 6632875 14978443 15588725 74892215 77943625 374461075 703986821 1872305375 3519934105 17599670525 87998352625