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167136805448 = 231445412
BaseRepresentation
bin1001101110101000100…
…0010100001001001000
3120222102001101102120122
42123222020110021020
510214244010233243
6204440453442412
715034543256114
oct2335210241110
9528361342518
10167136805448
1164978407788
1228485940408
13129b7a01b22
1481376c2744
1545332cb668
hex26ea214248

167136805448 has 12 divisors (see below), whose sum is σ = 313383678345. Its totient is φ = 83567824560.

The previous prime is 167136805397. The next prime is 167136805457. The reversal of 167136805448 is 844508631761.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 109535845444 + 57600960004 = 330962^2 + 240002^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=289082.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 167136805448.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1084058 + ... + 1228598.

Almost surely, 2167136805448 is an apocalyptic number.

It is an amenable number.

167136805448 is a deficient number, since it is larger than the sum of its proper divisors (146246872897).

167136805448 is an frugal number, since it uses more digits than its factorization.

167136805448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289088 (or 144543 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 167136805448 in words is "one hundred sixty-seven billion, one hundred thirty-six million, eight hundred five thousand, four hundred forty-eight".

Divisors: 1 2 4 8 144541 289082 578164 1156328 20892100681 41784201362 83568402724 167136805448