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138014418 = 23314991487
BaseRepresentation
bin10000011100111…
…10111011010010
3100121200212012010
420032132323102
5240312430133
621410043350
73264050253
oct1016367322
9317625163
10138014418
11709a6303
123a279556
1322793649
1414488b2a
15c1b3263
hex839eed2

138014418 has 32 divisors (see below), whose sum is σ = 285696000. Its totient is φ = 44401680.

The previous prime is 138014399. The next prime is 138014431. The reversal of 138014418 is 814410831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92071 + ... + 93557.

It is an arithmetic number, because the mean of its divisors is an integer number (8928000).

Almost surely, 2138014418 is an apocalyptic number.

138014418 is an abundant number, since it is smaller than the sum of its proper divisors (147681582).

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

138014418 is a wasteful number, since it uses less digits than its factorization.

138014418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 138014418 is about 11747.9537792758. The cubic root of 138014418 is about 516.7829215099.

The spelling of 138014418 in words is "one hundred thirty-eight million, fourteen thousand, four hundred eighteen".

Divisors: 1 2 3 6 31 62 93 186 499 998 1487 1497 2974 2994 4461 8922 15469 30938 46097 46407 92194 92814 138291 276582 742013 1484026 2226039 4452078 23002403 46004806 69007209 138014418