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87292371 = 329097457
BaseRepresentation
bin1010011001111…
…11100111010011
320002020220121210
411030333213103
5134321323441
612354551203
72106654465
oct514774723
9202226553
1087292371
1145302061
1225298503
13151146ba
14b844135
1579e4616
hex533f9d3

87292371 has 4 divisors (see below), whose sum is σ = 116389832. Its totient is φ = 58194912.

The previous prime is 87292351. The next prime is 87292379. The reversal of 87292371 is 17329278.

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

It is not a de Polignac number, because 87292371 - 25 = 87292339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87292379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14548726 + ... + 14548731.

It is an arithmetic number, because the mean of its divisors is an integer number (29097458).

Almost surely, 287292371 is an apocalyptic number.

87292371 is a deficient number, since it is larger than the sum of its proper divisors (29097461).

87292371 is a wasteful number, since it uses less digits than its factorization.

87292371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29097460.

The product of its digits is 42336, while the sum is 39.

The square root of 87292371 is about 9343.0386384730. The cubic root of 87292371 is about 443.6005710979.

The spelling of 87292371 in words is "eighty-seven million, two hundred ninety-two thousand, three hundred seventy-one".

Divisors: 1 3 29097457 87292371