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87472716 = 22311236491
BaseRepresentation
bin1010011011010…
…11101001001100
320002121002000020
411031223221030
5134343111331
612402502140
72111335332
oct515535114
9202532006
1087472716
1145415601
1225364950
1315178806
14b88db52
157a2cc96
hex536ba4c

87472716 has 24 divisors (see below), whose sum is σ = 204316224. Its totient is φ = 29127120.

The previous prime is 87472711. The next prime is 87472717. The reversal of 87472716 is 61727478.

It is not an unprimeable number, because it can be changed into a prime (87472711) 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, 10231 + ... + 16721.

It is an arithmetic number, because the mean of its divisors is an integer number (8513176).

Almost surely, 287472716 is an apocalyptic number.

It is an amenable number.

87472716 is an abundant number, since it is smaller than the sum of its proper divisors (116843508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87472716 is a wasteful number, since it uses less digits than its factorization.

87472716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621 (or 7619 counting only the distinct ones).

The product of its digits is 131712, while the sum is 42.

The square root of 87472716 is about 9352.6849620844. The cubic root of 87472716 is about 443.9058521262.

It can be divided in two parts, 87472 and 716, that added together give a palindrome (88188).

The spelling of 87472716 in words is "eighty-seven million, four hundred seventy-two thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 1123 2246 3369 4492 6491 6738 12982 13476 19473 25964 38946 77892 7289393 14578786 21868179 29157572 43736358 87472716