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90508167478560 = 253513173127522797
BaseRepresentation
bin10100100101000100010011…
…001010111111110100100000
3102212110111101210211212222210
4110211010103022333310200
543330341211333303220
6520254513402202120
725030666523002206
oct2445042312776440
9385414353755883
1090508167478560
1126925330aa9137
12a19910a1b3340
133b66b6428a050
14184c893929076
15a6e4d253d6e0
hex5251132bfd20

90508167478560 has 384 divisors, whose sum is σ = 335579090724864. Its totient is φ = 20292007034880.

The previous prime is 90508167478517. The next prime is 90508167478601. The reversal of 90508167478560 is 6587476180509.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90508167478491 and 90508167478500.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10472919 + ... + 17049878.

It is an arithmetic number, because the mean of its divisors is an integer number (873903882096).

Almost surely, 290508167478560 is an apocalyptic number.

It is an amenable number.

90508167478560 is an abundant number, since it is smaller than the sum of its proper divisors (245070923246304).

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

90508167478560 is a wasteful number, since it uses less digits than its factorization.

90508167478560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27522876 (or 27522868 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 90508167478560 in words is "ninety trillion, five hundred eight billion, one hundred sixty-seven million, four hundred seventy-eight thousand, five hundred sixty".