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149711912 = 23719113997
BaseRepresentation
bin10001110110001…
…10110000101000
3101102201011010122
420323012300220
5301311240122
622504502412
73465346610
oct1073066050
9342634118
10149711912
1177565859
124217aa08
132502aa3c
1415c51a40
15d224142
hex8ec6c28

149711912 has 32 divisors (see below), whose sum is σ = 322513920. Its totient is φ = 63821760.

The previous prime is 149711893. The next prime is 149711917. The reversal of 149711912 is 219117941.

It is not an unprimeable number, because it can be changed into a prime (149711917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3698 + ... + 17694.

It is an arithmetic number, because the mean of its divisors is an integer number (10078560).

Almost surely, 2149711912 is an apocalyptic number.

It is an amenable number.

149711912 is an abundant number, since it is smaller than the sum of its proper divisors (172802008).

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

149711912 is a wasteful number, since it uses less digits than its factorization.

149711912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14201 (or 14197 counting only the distinct ones).

The product of its digits is 4536, while the sum is 35.

The square root of 149711912 is about 12235.6819180624. The cubic root of 149711912 is about 530.9889119466.

The spelling of 149711912 in words is "one hundred forty-nine million, seven hundred eleven thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 191 382 764 1337 1528 2674 5348 10696 13997 27994 55988 97979 111976 195958 391916 783832 2673427 5346854 10693708 18713989 21387416 37427978 74855956 149711912