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12982311 = 323474157
BaseRepresentation
bin110001100001…
…100000100111
3220102120101100
4301201200213
511310413221
61142131143
7215230206
oct61414047
926376340
1012982311
117367891
124420ab3
1328c7154
141a1d23d
151216926
hexc61827

12982311 has 12 divisors (see below), whose sum is σ = 18810792. Its totient is φ = 8627856.

The previous prime is 12982309. The next prime is 12982331. The reversal of 12982311 is 11328921.

It is not a de Polignac number, because 12982311 - 21 = 12982309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12982331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1045 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (1567566).

Almost surely, 212982311 is an apocalyptic number.

12982311 is a deficient number, since it is larger than the sum of its proper divisors (5828481).

12982311 is a wasteful number, since it uses less digits than its factorization.

12982311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510 (or 4507 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 12982311 is about 3603.0974175007. The cubic root of 12982311 is about 235.0267722630.

The spelling of 12982311 in words is "twelve million, nine hundred eighty-two thousand, three hundred eleven".

Divisors: 1 3 9 347 1041 3123 4157 12471 37413 1442479 4327437 12982311