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87664983936 = 273228294229
BaseRepresentation
bin101000110100100111…
…1010111111110000000
322101021112010121020220
41101221033113332000
52414014213441221
6104134524503040
76222264032355
oct1215117277600
9271245117226
1087664983936
11341a6663a52
1214ba69aaa80
138361139c7a
144358b5662c
1524313900c6
hex14693d7f80

87664983936 has 32 divisors (see below), whose sum is σ = 232860114600. Its totient is φ = 29221661184.

The previous prime is 87664983919. The next prime is 87664983941. The reversal of 87664983936 is 63938946678.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 114146731 + ... + 114147498.

Almost surely, 287664983936 is an apocalyptic number.

It is an amenable number.

87664983936 is an abundant number, since it is smaller than the sum of its proper divisors (145195130664).

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

87664983936 is a wasteful number, since it uses less digits than its factorization.

87664983936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228294246 (or 228294234 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 69.

The spelling of 87664983936 in words is "eighty-seven billion, six hundred sixty-four million, nine hundred eighty-three thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 228294229 456588458 684882687 913176916 1369765374 1826353832 2739530748 3652707664 5479061496 7305415328 10958122992 14610830656 21916245984 29221661312 43832491968 87664983936