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87504249 = 372595267
BaseRepresentation
bin1010011011100…
…11010101111001
320002122200021010
411031303111321
5134400113444
612403304133
72111526300
oct515632571
9202580233
1087504249
1145437268
122537b049
1315189c81
14b89b437
157a372b9
hex5373579

87504249 has 12 divisors (see below), whose sum is σ = 135721104. Its totient is φ = 50002344.

The previous prime is 87504203. The next prime is 87504311. The reversal of 87504249 is 94240578.

It is not a de Polignac number, because 87504249 - 28 = 87503993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87500249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297487 + ... + 297780.

It is an arithmetic number, because the mean of its divisors is an integer number (11310092).

Almost surely, 287504249 is an apocalyptic number.

It is an amenable number.

87504249 is a deficient number, since it is larger than the sum of its proper divisors (48216855).

87504249 is a wasteful number, since it uses less digits than its factorization.

87504249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595284 (or 595277 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 87504249 is about 9354.3705827811. The cubic root of 87504249 is about 443.9591868580.

The spelling of 87504249 in words is "eighty-seven million, five hundred four thousand, two hundred forty-nine".

Divisors: 1 3 7 21 49 147 595267 1785801 4166869 12500607 29168083 87504249