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87491396096 = 291313144741
BaseRepresentation
bin101000101111011100…
…1001100001000000000
322100211102111102111122
41101132321030020000
52413140244133341
6104105404131412
76215055411356
oct1213671141000
9270742442448
1087491396096
1134117680925
1214b58836b68
13833419c880
14433da8b7d6
15242100194b
hex145ee4c200

87491396096 has 40 divisors (see below), whose sum is σ = 188258994924. Its totient is φ = 40380641280.

The previous prime is 87491396059. The next prime is 87491396107. The reversal of 87491396096 is 69069319478.

It can be written as a sum of positive squares in 2 ways, for example, as 81521670400 + 5969725696 = 285520^2 + 77264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6565715 + ... + 6579026.

Almost surely, 287491396096 is an apocalyptic number.

It is an amenable number.

87491396096 is an abundant number, since it is smaller than the sum of its proper divisors (100767598828).

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

87491396096 is a wasteful number, since it uses less digits than its factorization.

87491396096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13144772 (or 13144756 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 87491396096 in words is "eighty-seven billion, four hundred ninety-one million, three hundred ninety-six thousand, ninety-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 256 416 512 832 1664 3328 6656 13144741 26289482 52578964 105157928 170881633 210315856 341763266 420631712 683526532 841263424 1367053064 1682526848 2734106128 3365053696 5468212256 6730107392 10936424512 21872849024 43745698048 87491396096