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149571320 = 23511333091
BaseRepresentation
bin10001110101001…
…00011011111000
3101102110000021112
420322210123320
5301242240240
622501455452
73464222663
oct1072443370
9342400245
10149571320
117747a168
1242111588
1324caba52
1415c166da
15d1e7665
hex8ea46f8

149571320 has 32 divisors (see below), whose sum is σ = 339523920. Its totient is φ = 59297280.

The previous prime is 149571319. The next prime is 149571371. The reversal of 149571320 is 23175941.

149571320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12026 + ... + 21065.

Almost surely, 2149571320 is an apocalyptic number.

149571320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149571320 is an abundant number, since it is smaller than the sum of its proper divisors (189952600).

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

149571320 is a wasteful number, since it uses less digits than its factorization.

149571320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33215 (or 33211 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 149571320 is about 12229.9354045718. The cubic root of 149571320 is about 530.8226455649.

The spelling of 149571320 in words is "one hundred forty-nine million, five hundred seventy-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 113 226 452 565 904 1130 2260 4520 33091 66182 132364 165455 264728 330910 661820 1323640 3739283 7478566 14957132 18696415 29914264 37392830 74785660 149571320