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148979172 = 22312414931
BaseRepresentation
bin10001110000100…
…11110111100100
3101101022221000010
420320103313210
5301114313142
622441050220
73456205416
oct1070236744
9341287003
10148979172
1177105291
1241a86970
1324b32374
1415b009b6
15d12be9c
hex8e13de4

148979172 has 12 divisors (see below), whose sum is σ = 347618096. Its totient is φ = 49659720.

The previous prime is 148979153. The next prime is 148979231. The reversal of 148979172 is 271979841.

148979172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 6207454 + ... + 6207477.

Almost surely, 2148979172 is an apocalyptic number.

148979172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

148979172 is an abundant number, since it is smaller than the sum of its proper divisors (198638924).

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

148979172 is a wasteful number, since it uses less digits than its factorization.

148979172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12414938 (or 12414936 counting only the distinct ones).

The product of its digits is 254016, while the sum is 48.

The square root of 148979172 is about 12205.7024377952. The cubic root of 148979172 is about 530.1212158964.

The spelling of 148979172 in words is "one hundred forty-eight million, nine hundred seventy-nine thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 12414931 24829862 37244793 49659724 74489586 148979172