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149149656 = 23325873529
BaseRepresentation
bin10001110001111…
…01011111011000
3101101122120212100
420320331133120
5301140242111
622444443400
73460515435
oct1070753730
9341576770
10149149656
1177211387
1241b49560
1324b91b46
1415b46b8c
15d162756
hex8e3d7d8

149149656 has 48 divisors (see below), whose sum is σ = 404749800. Its totient is φ = 49617792.

The previous prime is 149149633. The next prime is 149149661. The reversal of 149149656 is 656941941.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40500 + ... + 44028.

Almost surely, 2149149656 is an apocalyptic number.

It is an amenable number.

149149656 is an abundant number, since it is smaller than the sum of its proper divisors (255600144).

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

149149656 is a wasteful number, since it uses less digits than its factorization.

149149656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128 (or 4121 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 149149656 is about 12212.6842258367. The cubic root of 149149656 is about 530.3233531745.

The spelling of 149149656 in words is "one hundred forty-nine million, one hundred forty-nine thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 587 1174 1761 2348 3522 3529 4696 5283 7044 7058 10566 10587 14088 14116 21132 21174 28232 31761 42264 42348 63522 84696 127044 254088 2071523 4143046 6214569 8286092 12429138 16572184 18643707 24858276 37287414 49716552 74574828 149149656