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87512137867048 = 2328979377480839
BaseRepresentation
bin10011111001011110000001…
…111001000001111100101000
3102110212002010100120020122011
4103321132001321001330220
542432244324243221143
6510042304322005304
724301354233331546
oct2371360171017450
9373762110506564
1087512137867048
112597a764431064
129994531aa6834
1339aa4891b165b
141787878078d96
15a1b5d1670e9d
hex4f9781e41f28

87512137867048 has 16 divisors (see below), whose sum is σ = 164090921148000. Its totient is φ = 43754558894256.

The previous prime is 87512137867013. The next prime is 87512137867067. The reversal of 87512137867048 is 84076873121578.

It is a super-2 number, since 2×875121378670482 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188508588 + ... + 188972251.

It is an arithmetic number, because the mean of its divisors is an integer number (10255682571750).

Almost surely, 287512137867048 is an apocalyptic number.

It is an amenable number.

87512137867048 is a deficient number, since it is larger than the sum of its proper divisors (76578783280952).

87512137867048 is a wasteful number, since it uses less digits than its factorization.

87512137867048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377509824 (or 377509820 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 67.

The spelling of 87512137867048 in words is "eighty-seven trillion, five hundred twelve billion, one hundred thirty-seven million, eight hundred sixty-seven thousand, forty-eight".

Divisors: 1 2 4 8 28979 57958 115916 231832 377480839 754961678 1509923356 3019846712 10939017233381 21878034466762 43756068933524 87512137867048