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86687580960 = 2532560199709
BaseRepresentation
bin101000010111011111…
…0111000001100100000
322021202101222101102200
41100232332320030200
52410014010042320
6103453531413200
76156125165121
oct1205676701440
9267671871380
1086687580960
11338449746a2
12149735b4200
1382367b2306
1442a500c048
1523c5674290
hex142efb8320

86687580960 has 72 divisors (see below), whose sum is σ = 295821374940. Its totient is φ = 23116687872.

The previous prime is 86687580899. The next prime is 86687580971. The reversal of 86687580960 is 6908578668.

It can be written as a sum of positive squares in 2 ways, for example, as 82440191376 + 4247389584 = 287124^2 + 65172^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30098415 + ... + 30101294.

Almost surely, 286687580960 is an apocalyptic number.

86687580960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86687580960 is an abundant number, since it is smaller than the sum of its proper divisors (209133793980).

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

86687580960 is a wasteful number, since it uses less digits than its factorization.

86687580960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60199730 (or 60199719 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 86687580960 in words is "eighty-six billion, six hundred eighty-seven million, five hundred eighty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 60199709 120399418 180599127 240798836 300998545 361198254 481597672 541797381 601997090 722396508 902995635 963195344 1083594762 1203994180 1444793016 1805991270 1926390688 2167189524 2407988360 2708986905 2889586032 3611982540 4334379048 4815976720 5417973810 5779172064 7223965080 8668758096 9631953440 10835947620 14447930160 17337516192 21671895240 28895860320 43343790480 86687580960