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87699456001 = 531654706717
BaseRepresentation
bin101000110101101001…
…0111000000000000001
322101100220222222001001
41101223102320000001
52414102030043001
6104142155412001
76223163035123
oct1215322700001
9271326888031
1087699456001
1134214069363
1214bb6454001
138368319641
14435d56b213
1524343ee001
hex146b4b8001

87699456001 has 4 divisors (see below), whose sum is σ = 89354162772. Its totient is φ = 86044749232.

The previous prime is 87699455971. The next prime is 87699456011. The reversal of 87699456001 is 10065499678.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35293258225 + 52406197776 = 187865^2 + 228924^2 .

It is a cyclic number.

It is not a de Polignac number, because 87699456001 - 29 = 87699455489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87699456011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827353306 + ... + 827353411.

It is an arithmetic number, because the mean of its divisors is an integer number (22338540693).

Almost surely, 287699456001 is an apocalyptic number.

It is an amenable number.

87699456001 is a deficient number, since it is larger than the sum of its proper divisors (1654706771).

87699456001 is a wasteful number, since it uses less digits than its factorization.

87699456001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654706770.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 87699456001 in words is "eighty-seven billion, six hundred ninety-nine million, four hundred fifty-six thousand, one".

Divisors: 1 53 1654706717 87699456001