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12613983 = 317214549
BaseRepresentation
bin110000000111…
…100101011111
3212201212010120
4300013211133
511212121413
61130210023
7212134314
oct60074537
925655116
1012613983
117136088
124283913
1327c85c5
141964d0b
151192723
hexc0795f

12613983 has 12 divisors (see below), whose sum is σ = 17867400. Its totient is φ = 7914112.

The previous prime is 12613981. The next prime is 12613999. The reversal of 12613983 is 38931621.

It is not a de Polignac number, because 12613983 - 21 = 12613981 is a prime.

It is a super-2 number, since 2×126139832 = 318225134248578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12613981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6408 + ... + 8141.

It is an arithmetic number, because the mean of its divisors is an integer number (1488950).

Almost surely, 212613983 is an apocalyptic number.

12613983 is a deficient number, since it is larger than the sum of its proper divisors (5253417).

12613983 is a wasteful number, since it uses less digits than its factorization.

12613983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14586 (or 14569 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 12613983 is about 3551.6169556978. The cubic root of 12613983 is about 232.7827246247.

The spelling of 12613983 in words is "twelve million, six hundred thirteen thousand, nine hundred eighty-three".

Divisors: 1 3 17 51 289 867 14549 43647 247333 741999 4204661 12613983