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12750930 = 2325141677
BaseRepresentation
bin110000101001…
…000001010010
3212222210222200
4300221001102
511231012210
61133144030
7213244503
oct60510122
925883880
1012750930
117219a65
12432b016
132845a3a
14199cbaa
1511bd0c0
hexc29052

12750930 has 24 divisors (see below), whose sum is σ = 33152652. Its totient is φ = 3400224.

The previous prime is 12750911. The next prime is 12750989. The reversal of 12750930 is 3905721.

12750930 is a `hidden beast` number, since 127 + 509 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11471769 + 1279161 = 3387^2 + 1131^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12750894 and 12750903.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70749 + ... + 70928.

Almost surely, 212750930 is an apocalyptic number.

12750930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12750930 is an abundant number, since it is smaller than the sum of its proper divisors (20401722).

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

12750930 is a wasteful number, since it uses less digits than its factorization.

12750930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141690 (or 141687 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 12750930 is about 3570.8444379446. The cubic root of 12750930 is about 233.6221163656.

The spelling of 12750930 in words is "twelve million, seven hundred fifty thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 141677 283354 425031 708385 850062 1275093 1416770 2125155 2550186 4250310 6375465 12750930