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87730514912 = 2512721587233
BaseRepresentation
bin101000110110100100…
…1010110101111100000
322101110002102220212002
41101231021112233200
52414133002434122
6104145225223132
76224021033645
oct1215511265740
9271402386762
1087730514912
113422a652387
1215004931aa8
1383718a25b1
144363733dcc
152436ed6992
hex146d256be0

87730514912 has 24 divisors (see below), whose sum is σ = 174079454976. Its totient is φ = 43519859712.

The previous prime is 87730514909. The next prime is 87730514999. The reversal of 87730514912 is 21941503778.

It is a congruent number.

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, 10789553 + ... + 10797680.

It is an arithmetic number, because the mean of its divisors is an integer number (7253310624).

Almost surely, 287730514912 is an apocalyptic number.

It is an amenable number.

87730514912 is a deficient number, since it is larger than the sum of its proper divisors (86348940064).

87730514912 is a wasteful number, since it uses less digits than its factorization.

87730514912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21587370 (or 21587362 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 87730514912 in words is "eighty-seven billion, seven hundred thirty million, five hundred fourteen thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 32 127 254 508 1016 2032 4064 21587233 43174466 86348932 172697864 345395728 690791456 2741578591 5483157182 10966314364 21932628728 43865257456 87730514912