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87492661963 = 723543432683
BaseRepresentation
bin101000101111011111…
…0000001001011001011
322100211111212201221121
41101132332001023023
52413141110140323
6104105451220111
76215102233060
oct1213676011313
9270744781847
1087492661963
11341183659a3
1214b59147637
138334523ac5
14433dcdac67
1524211a1a5d
hex145ef812cb

87492661963 has 8 divisors (see below), whose sum is σ = 104339075328. Its totient is φ = 71733114024.

The previous prime is 87492661961. The next prime is 87492661981. The reversal of 87492661963 is 36916629478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87492661963 - 21 = 87492661961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87492661961) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 271716181 + ... + 271716502.

It is an arithmetic number, because the mean of its divisors is an integer number (13042384416).

Almost surely, 287492661963 is an apocalyptic number.

87492661963 is a deficient number, since it is larger than the sum of its proper divisors (16846413365).

87492661963 is a wasteful number, since it uses less digits than its factorization.

87492661963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543432713.

The product of its digits is 23514624, while the sum is 61.

The spelling of 87492661963 in words is "eighty-seven billion, four hundred ninety-two million, six hundred sixty-one thousand, nine hundred sixty-three".

Divisors: 1 7 23 161 543432683 3804028781 12498951709 87492661963