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149185944 = 233213115817
BaseRepresentation
bin10001110010001…
…10010110011000
3101101201102122100
420321012112120
5301142422234
622445323400
73461026305
oct1071062630
9341642570
10149185944
1177236676
1241b66560
1324ba550b
1415b560ac
15d16d399
hex8e46598

149185944 has 48 divisors (see below), whose sum is σ = 407155320. Its totient is φ = 49345920.

The previous prime is 149185879. The next prime is 149185969. The reversal of 149185944 is 449581941.

It is a happy number.

149185944 is a `hidden beast` number, since 1 + 49 + 18 + 594 + 4 = 666.

It is a super-2 number, since 2×1491859442 = 44512891774342272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 149185944.

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, 1524 + ... + 17340.

Almost surely, 2149185944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149185944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203577660).

149185944 is an abundant number, since it is smaller than the sum of its proper divisors (257969376).

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

149185944 is a wasteful number, since it uses less digits than its factorization.

149185944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15960 (or 15953 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 149185944 is about 12214.1698039613. The cubic root of 149185944 is about 530.3663587789.

The spelling of 149185944 in words is "one hundred forty-nine million, one hundred eighty-five thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 131 262 393 524 786 1048 1179 1572 2358 3144 4716 9432 15817 31634 47451 63268 94902 126536 142353 189804 284706 379608 569412 1138824 2072027 4144054 6216081 8288108 12432162 16576216 18648243 24864324 37296486 49728648 74592972 149185944