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87336073 = 117939643
BaseRepresentation
bin1010011010010…
…10010010001001
320002100010120101
411031022102021
5134324223243
612355525401
72110226056
oct515122211
9202303511
1087336073
1145331980
12252b9861
131512b566
14b85602d
157a0254d
hex534a489

87336073 has 4 divisors (see below), whose sum is σ = 95275728. Its totient is φ = 79396420.

The previous prime is 87336049. The next prime is 87336101. The reversal of 87336073 is 37063378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87336073 is a prime.

It is a super-2 number, since 2×873360732 = 15255179294122658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87336373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3969811 + ... + 3969832.

It is an arithmetic number, because the mean of its divisors is an integer number (23818932).

Almost surely, 287336073 is an apocalyptic number.

It is an amenable number.

87336073 is a deficient number, since it is larger than the sum of its proper divisors (7939655).

87336073 is a wasteful number, since it uses less digits than its factorization.

87336073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939654.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 87336073 is about 9345.3770924452. The cubic root of 87336073 is about 443.6745867217.

The spelling of 87336073 in words is "eighty-seven million, three hundred thirty-six thousand, seventy-three".

Divisors: 1 11 7939643 87336073