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149969372 = 2279755217
BaseRepresentation
bin10001111000001…
…01100111011100
3101110012020022012
420330011213130
5301343004442
622514210352
73500501330
oct1074054734
9343166265
10149969372
1177721233
12422839b8
13250bac97
1415cbb7c0
15d275582
hex8f059dc

149969372 has 24 divisors (see below), whose sum is σ = 303036384. Its totient is φ = 63608832.

The previous prime is 149969363. The next prime is 149969387. The reversal of 149969372 is 273969941.

149969372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 149969372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24893 + ... + 30324.

It is an arithmetic number, because the mean of its divisors is an integer number (12626516).

Almost surely, 2149969372 is an apocalyptic number.

It is an amenable number.

149969372 is an abundant number, since it is smaller than the sum of its proper divisors (153067012).

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

149969372 is a wasteful number, since it uses less digits than its factorization.

149969372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55325 (or 55323 counting only the distinct ones).

The product of its digits is 734832, while the sum is 50.

The square root of 149969372 is about 12246.1982672175. The cubic root of 149969372 is about 531.2931186778.

The spelling of 149969372 in words is "one hundred forty-nine million, nine hundred sixty-nine thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 28 97 194 388 679 1358 2716 55217 110434 220868 386519 773038 1546076 5356049 10712098 21424196 37492343 74984686 149969372