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87174468 = 2234269057
BaseRepresentation
bin1010011001000…
…10110101000100
320002000220220000
411030202311010
5134304040333
612352241300
72105653653
oct514426504
9202026800
1087174468
1145231517
1225240230
13150a2b34
14b81319a
1579be713
hex5322d44

87174468 has 30 divisors (see below), whose sum is σ = 227892126. Its totient is φ = 29058048.

The previous prime is 87174457. The next prime is 87174469. The reversal of 87174468 is 86447178.

It can be written as a sum of positive squares in only one way, i.e., 61591104 + 25583364 = 7848^2 + 5058^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87174469) 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 9 ways as a sum of consecutive naturals, for example, 134205 + ... + 134852.

Almost surely, 287174468 is an apocalyptic number.

It is an amenable number.

87174468 is an abundant number, since it is smaller than the sum of its proper divisors (140717658).

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

87174468 is a wasteful number, since it uses less digits than its factorization.

87174468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269073 (or 269062 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 87174468 is about 9336.7268354601. The cubic root of 87174468 is about 443.4007621009.

The spelling of 87174468 in words is "eighty-seven million, one hundred seventy-four thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 269057 538114 807171 1076228 1614342 2421513 3228684 4843026 7264539 9686052 14529078 21793617 29058156 43587234 87174468