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149930929 = 552727127
BaseRepresentation
bin10001110111111…
…00001110110001
3101110010021120101
420323330032301
5301340242204
622513312401
73500251261
oct1073741661
9343107511
10149930929
11776a5365
1242265701
13250a6635
1415cab7a1
15d268ea4
hex8efc3b1

149930929 has 4 divisors (see below), whose sum is σ = 149963584. Its totient is φ = 149898276.

The previous prime is 149930909. The next prime is 149930947. The reversal of 149930929 is 929039941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149930929 - 25 = 149930897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149930909) 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, 8037 + ... + 19090.

It is an arithmetic number, because the mean of its divisors is an integer number (37490896).

Almost surely, 2149930929 is an apocalyptic number.

It is an amenable number.

149930929 is a deficient number, since it is larger than the sum of its proper divisors (32655).

149930929 is an equidigital number, since it uses as much as digits as its factorization.

149930929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32654.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 149930929 is about 12244.6285774620. The cubic root of 149930929 is about 531.2477177480.

The spelling of 149930929 in words is "one hundred forty-nine million, nine hundred thirty thousand, nine hundred twenty-nine".

Divisors: 1 5527 27127 149930929