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149830868 = 22113405247
BaseRepresentation
bin10001110111000…
…11110011010100
3101102221012022102
420323203303110
5301324041433
622511221232
73466353455
oct1073436324
9342835272
10149830868
1177637170
1242217818
132506cc25
1415c8312c
15d2494e8
hex8ee3cd4

149830868 has 12 divisors (see below), whose sum is σ = 286040832. Its totient is φ = 68104920.

The previous prime is 149830867. The next prime is 149830873. The reversal of 149830868 is 868038941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149830861) 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, 1702580 + ... + 1702667.

It is an arithmetic number, because the mean of its divisors is an integer number (23836736).

Almost surely, 2149830868 is an apocalyptic number.

It is an amenable number.

149830868 is a deficient number, since it is larger than the sum of its proper divisors (136209964).

149830868 is a wasteful number, since it uses less digits than its factorization.

149830868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405262 (or 3405260 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 149830868 is about 12240.5419814647. The cubic root of 149830868 is about 531.1295099662.

The spelling of 149830868 in words is "one hundred forty-nine million, eight hundred thirty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 44 3405247 6810494 13620988 37457717 74915434 149830868