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12962129 = 17237523
BaseRepresentation
bin110001011100…
…100101010001
3220101112200212
4301130211101
511304242004
61141453505
7215114315
oct61344521
926345625
1012962129
117353704
124411295
1328babcb
141a15b45
15121096e
hexc5c951

12962129 has 4 divisors (see below), whose sum is σ = 12971376. Its totient is φ = 12952884.

The previous prime is 12962119. The next prime is 12962137. The reversal of 12962129 is 92126921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92126921 = 630114621.

It is a cyclic number.

It is not a de Polignac number, because 12962129 - 220 = 11913553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12962095 and 12962104.

It is not an unprimeable number, because it can be changed into a prime (12962119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039 + ... + 5484.

It is an arithmetic number, because the mean of its divisors is an integer number (3242844).

Almost surely, 212962129 is an apocalyptic number.

It is an amenable number.

12962129 is a deficient number, since it is larger than the sum of its proper divisors (9247).

12962129 is an equidigital number, since it uses as much as digits as its factorization.

12962129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9246.

The product of its digits is 3888, while the sum is 32.

The square root of 12962129 is about 3600.2956823017. The cubic root of 12962129 is about 234.9049200393.

The spelling of 12962129 in words is "twelve million, nine hundred sixty-two thousand, one hundred twenty-nine".

Divisors: 1 1723 7523 12962129