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149238074 = 22512711097
BaseRepresentation
bin10001110010100…
…11000100111010
3101101211002011002
420321103010322
5301201104244
622450405002
73461334266
oct1071230472
9341732132
10149238074
1177271857
1241b90762
1324bc316b
1415b6b0a6
15d17da4e
hex8e5313a

149238074 has 16 divisors (see below), whose sum is σ = 225783936. Its totient is φ = 73980000.

The previous prime is 149238071. The next prime is 149238097. The reversal of 149238074 is 470832941.

It is not an unprimeable number, because it can be changed into a prime (149238071) 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 7 ways as a sum of consecutive naturals, for example, 135494 + ... + 136590.

It is an arithmetic number, because the mean of its divisors is an integer number (14111496).

Almost surely, 2149238074 is an apocalyptic number.

149238074 is a deficient number, since it is larger than the sum of its proper divisors (76545862).

149238074 is a wasteful number, since it uses less digits than its factorization.

149238074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 149238074 is about 12216.3036144326. The cubic root of 149238074 is about 530.4281268379.

The spelling of 149238074 in words is "one hundred forty-nine million, two hundred thirty-eight thousand, seventy-four".

Divisors: 1 2 251 271 502 542 1097 2194 68021 136042 275347 297287 550694 594574 74619037 149238074