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149146788 = 22372253651
BaseRepresentation
bin10001110001111…
…00110010100100
3101101122102221010
420320330302210
5301140144123
622444422220
73460504200
oct1070746244
9341572833
10149146788
117720a20a
1241b47970
1324b9074b
1415b45b00
15d161993
hex8e3cca4

149146788 has 36 divisors (see below), whose sum is σ = 404828592. Its totient is φ = 42613200.

The previous prime is 149146787. The next prime is 149146817. The reversal of 149146788 is 887641941.

It is not an unprimeable number, because it can be changed into a prime (149146783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126238 + ... + 127413.

Almost surely, 2149146788 is an apocalyptic number.

It is an amenable number.

149146788 is an abundant number, since it is smaller than the sum of its proper divisors (255681804).

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

149146788 is a wasteful number, since it uses less digits than its factorization.

149146788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253672 (or 253663 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 149146788 is about 12212.5668063679. The cubic root of 149146788 is about 530.3199539553.

The spelling of 149146788 in words is "one hundred forty-nine million, one hundred forty-six thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 253651 507302 760953 1014604 1521906 1775557 3043812 3551114 5326671 7102228 10653342 12428899 21306684 24857798 37286697 49715596 74573394 149146788