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87222500652672 = 273572113193173
BaseRepresentation
bin10011110101010000010010…
…001010101111011010000000
3102102211101112001001021100000
4103311100102022233122000
542413023140131341142
6505301244051200000
724241421606536200
oct2365202212573200
9372741461037300
1087222500652672
1125878944807000
12994837aba6000
13398907b281b78
14177783d334400
15a13ccdb3214c
hex4f54122af680

87222500652672 has 4608 divisors, whose sum is σ = 366833669529600. Its totient is φ = 20485940428800.

The previous prime is 87222500652647. The next prime is 87222500652719. The reversal of 87222500652672 is 27625600522278.

87222500652672 is a `hidden beast` number, since 8 + 7 + 2 + 2 + 2 + 500 + 65 + 2 + 6 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 1194828776028 + ... + 1194828776100.

It is an arithmetic number, because the mean of its divisors is an integer number (79608001200).

Almost surely, 287222500652672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87222500652672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183416834764800).

87222500652672 is an abundant number, since it is smaller than the sum of its proper divisors (279611168876928).

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

87222500652672 is a wasteful number, since it uses less digits than its factorization.

87222500652672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 87222500652672 in words is "eighty-seven trillion, two hundred twenty-two billion, five hundred million, six hundred fifty-two thousand, six hundred seventy-two".