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87486668200 = 23521725731373
BaseRepresentation
bin101000101111010011…
…1001001110110101000
322100211002121020001101
41101132213021312220
52413133041340300
6104105114531144
76215000260411
oct1213647116650
9270732536041
1087486668200
1134114a41778
1214b57136ab4
1383332058b9
14433d1ba808
1524208bab6a
hex145e9c9da8

87486668200 has 48 divisors (see below), whose sum is σ = 215371600380. Its totient is φ = 32936156160.

The previous prime is 87486668173. The next prime is 87486668219. The reversal of 87486668200 is 286668478.

It can be written as a sum of positive squares in 6 ways, for example, as 50471216964 + 37015451236 = 224658^2 + 192394^2 .

It is a super-2 number, since 2×874866682002 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12862287 + ... + 12869086.

Almost surely, 287486668200 is an apocalyptic number.

It is an amenable number.

87486668200 is an abundant number, since it is smaller than the sum of its proper divisors (127884932180).

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

87486668200 is a wasteful number, since it uses less digits than its factorization.

87486668200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25731406 (or 25731397 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 87486668200 in words is "eighty-seven billion, four hundred eighty-six million, six hundred sixty-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 425 680 850 1700 3400 25731373 51462746 102925492 128656865 205850984 257313730 437433341 514627460 643284325 874866682 1029254920 1286568650 1749733364 2187166705 2573137300 3499466728 4374333410 5146274600 8748666820 10935833525 17497333640 21871667050 43743334100 87486668200