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149345268 = 22312445439
BaseRepresentation
bin10001110011011…
…01001111110100
3101102000112012020
420321231033310
5301213022033
622452553140
73462261642
oct1071551764
9342015166
10149345268
1177335346
12420227b0
1324c2cba7
1415b98192
15d1a06b3
hex8e6d3f4

149345268 has 12 divisors (see below), whose sum is σ = 348472320. Its totient is φ = 49781752.

The previous prime is 149345267. The next prime is 149345281. The reversal of 149345268 is 862543941.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149345267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6222708 + ... + 6222731.

It is an arithmetic number, because the mean of its divisors is an integer number (29039360).

Almost surely, 2149345268 is an apocalyptic number.

It is an amenable number.

149345268 is an abundant number, since it is smaller than the sum of its proper divisors (199127052).

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

149345268 is a wasteful number, since it uses less digits than its factorization.

149345268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12445446 (or 12445444 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 149345268 is about 12220.6901605433. The cubic root of 149345268 is about 530.5550942244. Note that the first 3 decimals are identical.

It can be divided in two parts, 14934 and 5268, that added together give a palindrome (20202).

The spelling of 149345268 in words is "one hundred forty-nine million, three hundred forty-five thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 12445439 24890878 37336317 49781756 74672634 149345268