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148451172 = 22312370931
BaseRepresentation
bin10001101100100…
…10111101100100
3101100100002201120
420312102331210
5301000414142
622421453540
73451546152
oct1066227544
9340302646
10148451172
1176884621
12418712b0
13249a8c3c
1415a043d2
15d0757ec
hex8d92f64

148451172 has 12 divisors (see below), whose sum is σ = 346386096. Its totient is φ = 49483720.

The previous prime is 148451159. The next prime is 148451197. The reversal of 148451172 is 271154841.

148451172 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 a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 6185454 + ... + 6185477.

It is an arithmetic number, because the mean of its divisors is an integer number (28865508).

Almost surely, 2148451172 is an apocalyptic number.

148451172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

148451172 is an abundant number, since it is smaller than the sum of its proper divisors (197934924).

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

148451172 is a wasteful number, since it uses less digits than its factorization.

148451172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370938 (or 12370936 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 148451172 is about 12184.0540051331. The cubic root of 148451172 is about 529.4942035833.

The spelling of 148451172 in words is "one hundred forty-eight million, four hundred fifty-one thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 12370931 24741862 37112793 49483724 74225586 148451172