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149107758 = 23231080491
BaseRepresentation
bin10001110001100…
…11010000101110
3101101120110101120
420320303100232
5301132422013
622443521410
73460252332
oct1070632056
9341513346
10149107758
1177192958
1241b29266
1324b78a57
1415b357c2
15d155123
hex8e3342e

149107758 has 16 divisors (see below), whose sum is σ = 311181696. Its totient is φ = 47541560.

The previous prime is 149107733. The next prime is 149107759. The reversal of 149107758 is 857701941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149107759) 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, 540108 + ... + 540383.

It is an arithmetic number, because the mean of its divisors is an integer number (19448856).

Almost surely, 2149107758 is an apocalyptic number.

149107758 is an abundant number, since it is smaller than the sum of its proper divisors (162073938).

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

149107758 is a wasteful number, since it uses less digits than its factorization.

149107758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080519.

The product of its (nonzero) digits is 70560, while the sum is 42.

The square root of 149107758 is about 12210.9687576375. The cubic root of 149107758 is about 530.2736903741.

The spelling of 149107758 in words is "one hundred forty-nine million, one hundred seven thousand, seven hundred fifty-eight".

Divisors: 1 2 3 6 23 46 69 138 1080491 2160982 3241473 6482946 24851293 49702586 74553879 149107758