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149242074 = 23198271583
BaseRepresentation
bin10001110010101…
…00000011011010
3101101211021122020
420321110003122
5301201221244
622450435310
73461352042
oct1071240332
9341737566
10149242074
1177274863
1241b92b36
1324bc4c27
1415b6c722
15d17ed19
hex8e540da

149242074 has 32 divisors (see below), whose sum is σ = 314772480. Its totient is φ = 47042352.

The previous prime is 149242073. The next prime is 149242087. The reversal of 149242074 is 470242941.

It is not an unprimeable number, because it can be changed into a prime (149242073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93487 + ... + 95069.

It is an arithmetic number, because the mean of its divisors is an integer number (9836640).

Almost surely, 2149242074 is an apocalyptic number.

149242074 is an abundant number, since it is smaller than the sum of its proper divisors (165530406).

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

149242074 is a wasteful number, since it uses less digits than its factorization.

149242074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 149242074 is about 12216.4673289785. The cubic root of 149242074 is about 530.4328657840.

The spelling of 149242074 in words is "one hundred forty-nine million, two hundred forty-two thousand, seventy-four".

Divisors: 1 2 3 6 19 38 57 114 827 1583 1654 2481 3166 4749 4962 9498 15713 30077 31426 47139 60154 90231 94278 180462 1309141 2618282 3927423 7854846 24873679 49747358 74621037 149242074