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86949688220 = 22519228814969
BaseRepresentation
bin101000011111010011…
…0101111001110011100
322022102200011210222222
41100332212233032130
52411033110010340
6103535533324512
76165460104203
oct1207646571634
9268380153888
1086949688220
113396991776a
1214a27336738
138278ba3775
1442cbb5a23a
1523dd69a8b5
hex143e9af39c

86949688220 has 24 divisors (see below), whose sum is σ = 192204574800. Its totient is φ = 32949355392.

The previous prime is 86949688207. The next prime is 86949688237. The reversal of 86949688220 is 2288694968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114407105 + ... + 114407864.

It is an arithmetic number, because the mean of its divisors is an integer number (8008523950).

Almost surely, 286949688220 is an apocalyptic number.

It is an amenable number.

86949688220 is an abundant number, since it is smaller than the sum of its proper divisors (105254886580).

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

86949688220 is a wasteful number, since it uses less digits than its factorization.

86949688220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228814997 (or 228814995 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 62.

The spelling of 86949688220 in words is "eighty-six billion, nine hundred forty-nine million, six hundred eighty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 228814969 457629938 915259876 1144074845 2288149690 4347484411 4576299380 8694968822 17389937644 21737422055 43474844110 86949688220