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87446215216 = 2443891428113
BaseRepresentation
bin101000101110000110…
…0110101101000110000
322100201021110222222201
41101130030311220300
52413042212341331
6104101111512544
76213666364603
oct1213414655060
9270637428881
1087446215216
11340a4121858
1214b45688754
138327a10b19
144337a8a33a
15241c079a61
hex145c335a30

87446215216 has 40 divisors (see below), whose sum is σ = 175315274640. Its totient is φ = 42226415616.

The previous prime is 87446215193. The next prime is 87446215247. The reversal of 87446215216 is 61251264478.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 652825 + ... + 775288.

It is an arithmetic number, because the mean of its divisors is an integer number (4382881866).

Almost surely, 287446215216 is an apocalyptic number.

87446215216 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

87446215216 is an abundant number, since it is smaller than the sum of its proper divisors (87869059424).

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

87446215216 is a wasteful number, since it uses less digits than its factorization.

87446215216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428253 (or 1428247 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The spelling of 87446215216 in words is "eighty-seven billion, four hundred forty-six million, two hundred fifteen thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 43 86 89 172 178 344 356 688 712 1424 3827 7654 15308 30616 61232 1428113 2856226 5712452 11424904 22849808 61408859 122817718 127102057 245635436 254204114 491270872 508408228 982541744 1016816456 2033632912 5465388451 10930776902 21861553804 43723107608 87446215216