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87464480 = 2554167199
BaseRepresentation
bin1010011011010…
…01101000100000
320002120122201012
411031221220200
5134342330410
612402400052
72111302325
oct515515040
9202518635
1087464480
114540a3a4
1225360028
1315174b3c
14b88ab4c
157a2a605
hex5369a20

87464480 has 96 divisors (see below), whose sum is σ = 215913600. Its totient is φ = 33454080.

The previous prime is 87464479. The next prime is 87464497. The reversal of 87464480 is 8446478.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 439421 + ... + 439619.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 287464480 is an apocalyptic number.

87464480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87464480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107956800).

87464480 is an abundant number, since it is smaller than the sum of its proper divisors (128449120).

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

87464480 is a wasteful number, since it uses less digits than its factorization.

87464480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 87464480 is about 9352.2446503500. The cubic root of 87464480 is about 443.8919196928.

The spelling of 87464480 in words is "eighty-seven million, four hundred sixty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 67 80 82 134 160 164 199 205 268 328 335 398 410 536 656 670 796 820 995 1072 1312 1340 1592 1640 1990 2144 2680 2747 3184 3280 3980 5360 5494 6368 6560 7960 8159 10720 10988 13333 13735 15920 16318 21976 26666 27470 31840 32636 40795 43952 53332 54940 65272 66665 81590 87904 106664 109880 130544 133330 163180 213328 219760 261088 266660 326360 426656 439520 533320 546653 652720 1066640 1093306 1305440 2133280 2186612 2733265 4373224 5466530 8746448 10933060 17492896 21866120 43732240 87464480