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87452887633 = 1732957170953
BaseRepresentation
bin101000101110010011…
…0010010101001010001
322100201202000222211021
41101130212102221101
52413100414401013
6104101510515441
76214110164656
oct1213446225121
9270652028737
1087452887633
11340a7969951
1214b47965b81
138329208bb7
144338905c2d
15241c946a8d
hex145c992a51

87452887633 has 8 divisors (see below), whose sum is σ = 87988656168. Its totient is φ = 86917467264.

The previous prime is 87452887607. The next prime is 87452887651. The reversal of 87452887633 is 33678825478.

It can be written as a sum of positive squares in 4 ways, for example, as 35682076609 + 51770811024 = 188897^2 + 227532^2 .

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 87452887633 - 213 = 87452879441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87452887663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426085 + ... + 597037.

It is an arithmetic number, because the mean of its divisors is an integer number (10998582021).

Almost surely, 287452887633 is an apocalyptic number.

It is an amenable number.

87452887633 is a deficient number, since it is larger than the sum of its proper divisors (535768535).

87452887633 is a wasteful number, since it uses less digits than its factorization.

87452887633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174083.

The product of its digits is 54190080, while the sum is 61.

The spelling of 87452887633 in words is "eighty-seven billion, four hundred fifty-two million, eight hundred eighty-seven thousand, six hundred thirty-three".

Divisors: 1 173 2957 170953 511561 29574869 505508021 87452887633