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149212244 = 22191963319
BaseRepresentation
bin10001110010011…
…00110001010100
3101101202202201102
420321030301110
5301144242434
622450045232
73461166056
oct1071146124
9341682642
10149212244
1177254405
1241b79818
1324bb448c
1415b618d6
15d17607e
hex8e4cc54

149212244 has 12 divisors (see below), whose sum is σ = 274864800. Its totient is φ = 70679448.

The previous prime is 149212223. The next prime is 149212253. The reversal of 149212244 is 442212941.

149212244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981584 + ... + 981735.

It is an arithmetic number, because the mean of its divisors is an integer number (22905400).

Almost surely, 2149212244 is an apocalyptic number.

It is an amenable number.

149212244 is a deficient number, since it is larger than the sum of its proper divisors (125652556).

149212244 is a wasteful number, since it uses less digits than its factorization.

149212244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963342 (or 1963340 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 149212244 is about 12215.2463749202. The cubic root of 149212244 is about 530.3975230546.

The spelling of 149212244 in words is "one hundred forty-nine million, two hundred twelve thousand, two hundred forty-four".

Divisors: 1 2 4 19 38 76 1963319 3926638 7853276 37303061 74606122 149212244