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149665548 = 22312472129
BaseRepresentation
bin10001110101110…
…11011100001100
3101102121210112110
420322323130030
5301303244143
622503504020
73465064464
oct1072733414
9342553473
10149665548
1177533a3a
1242158010
13250128c6
1415c3cba4
15d215533
hex8ebb70c

149665548 has 12 divisors (see below), whose sum is σ = 349219640. Its totient is φ = 49888512.

The previous prime is 149665511. The next prime is 149665573. The reversal of 149665548 is 845566941.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 149665497 and 149665506.

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, 6236053 + ... + 6236076.

Almost surely, 2149665548 is an apocalyptic number.

It is an amenable number.

149665548 is an abundant number, since it is smaller than the sum of its proper divisors (199554092).

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

149665548 is a wasteful number, since it uses less digits than its factorization.

149665548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12472136 (or 12472134 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 149665548 is about 12233.7871487124. The cubic root of 149665548 is about 530.9340926353.

The spelling of 149665548 in words is "one hundred forty-nine million, six hundred sixty-five thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 12472129 24944258 37416387 49888516 74832774 149665548