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87248860 = 2254619463
BaseRepresentation
bin1010011001101…
…00111111011100
320002011200221021
411030310333130
5134313430420
612354013524
72106413566
oct514647734
9202150837
1087248860
11452823a6
12252772a4
13150ca95a
14b832336
1579d67aa
hex5334fdc

87248860 has 24 divisors (see below), whose sum is σ = 183639456. Its totient is φ = 34820160.

The previous prime is 87248839. The next prime is 87248869. The reversal of 87248860 is 6884278.

It is a super-2 number, since 2×872488602 = 15224727142599200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87248869) 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, 4489 + ... + 13951.

It is an arithmetic number, because the mean of its divisors is an integer number (7651644).

Almost surely, 287248860 is an apocalyptic number.

It is an amenable number.

87248860 is an abundant number, since it is smaller than the sum of its proper divisors (96390596).

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

87248860 is a wasteful number, since it uses less digits than its factorization.

87248860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933 (or 9931 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 87248860 is about 9340.7098231344. The cubic root of 87248860 is about 443.5268544142.

The spelling of 87248860 in words is "eighty-seven million, two hundred forty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 461 922 1844 2305 4610 9220 9463 18926 37852 47315 94630 189260 4362443 8724886 17449772 21812215 43624430 87248860