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149067252 = 22324140757
BaseRepresentation
bin10001110001010…
…01010111110100
3101101111101211100
420320221113310
5301130123002
622443010100
73460023255
oct1070512764
9341441740
10149067252
1177165484
1241b09930
1324b63499
1415b24b2c
15d14811c
hex8e295f4

149067252 has 18 divisors (see below), whose sum is σ = 376808978. Its totient is φ = 49689072.

The previous prime is 149067239. The next prime is 149067263. The reversal of 149067252 is 252760941.

149067252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 96707556 + 52359696 = 9834^2 + 7236^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4140757 = 149067252 / (1 + 4 + 9 + 0 + 6 + 7 + 2 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2070343 + ... + 2070414.

Almost surely, 2149067252 is an apocalyptic number.

149067252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149067252 is an abundant number, since it is smaller than the sum of its proper divisors (227741726).

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

149067252 is a wasteful number, since it uses less digits than its factorization.

149067252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140767 (or 4140762 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 149067252 is about 12209.3100542168. The cubic root of 149067252 is about 530.2256687025.

The spelling of 149067252 in words is "one hundred forty-nine million, sixty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 4140757 8281514 12422271 16563028 24844542 37266813 49689084 74533626 149067252