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12998952 = 2332180541
BaseRepresentation
bin110001100101…
…100100101000
3220110102012200
4301211210220
511311431302
61142340200
7215326551
oct61454450
926412180
1012998952
11737933a
12442a660
1329018b5
141a25328
15121b81c
hexc65928

12998952 has 24 divisors (see below), whose sum is σ = 35205690. Its totient is φ = 4332960.

The previous prime is 12998941. The next prime is 12998957. The reversal of 12998952 is 25989921.

It can be written as a sum of positive squares in only one way, i.e., 12489156 + 509796 = 3534^2 + 714^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 12998898 and 12998907.

It is not an unprimeable number, because it can be changed into a prime (12998957) 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, 90199 + ... + 90342.

Almost surely, 212998952 is an apocalyptic number.

12998952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12998952 is an abundant number, since it is smaller than the sum of its proper divisors (22206738).

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

12998952 is a wasteful number, since it uses less digits than its factorization.

12998952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180553 (or 180546 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 12998952 is about 3605.4059410835. The cubic root of 12998952 is about 235.1271501439.

The spelling of 12998952 in words is "twelve million, nine hundred ninety-eight thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 180541 361082 541623 722164 1083246 1444328 1624869 2166492 3249738 4332984 6499476 12998952