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12148128 = 253242181
BaseRepresentation
bin101110010101…
…110110100000
3211212012002200
4232111312200
511102220003
61112213200
7205154166
oct56256640
924765080
1012148128
116948083
12409a200
132694555
141883236
1510ee6a3
hexb95da0

12148128 has 36 divisors (see below), whose sum is σ = 34547058. Its totient is φ = 4049280.

The previous prime is 12148127. The next prime is 12148141. The reversal of 12148128 is 82184121.

12148128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 121104 = 3468^2 + 348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12148121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20803 + ... + 21378.

Almost surely, 212148128 is an apocalyptic number.

12148128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12148128 is an abundant number, since it is smaller than the sum of its proper divisors (22398930).

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

12148128 is a wasteful number, since it uses less digits than its factorization.

12148128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42197 (or 42186 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 12148128 is about 3485.4164743973. The cubic root of 12148128 is about 229.8810222700.

The spelling of 12148128 in words is "twelve million, one hundred forty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 42181 84362 126543 168724 253086 337448 379629 506172 674896 759258 1012344 1349792 1518516 2024688 3037032 4049376 6074064 12148128