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12983961 = 319332239
BaseRepresentation
bin110001100001…
…111010011001
3220102122122110
4301201322121
511310441321
61142142533
7215235054
oct61417231
926378573
1012983961
117369051
124421a49
1328c7b23
141a1da9b
151217176
hexc61e99

12983961 has 8 divisors (see below), whose sum is σ = 17328640. Its totient is φ = 8647632.

The previous prime is 12983959. The next prime is 12983963. The reversal of 12983961 is 16938921.

12983961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12983959) and next prime (12983963).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12983961 - 21 = 12983959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12983963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4680 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (2166080).

Almost surely, 212983961 is an apocalyptic number.

It is an amenable number.

12983961 is a deficient number, since it is larger than the sum of its proper divisors (4344679).

12983961 is a wasteful number, since it uses less digits than its factorization.

12983961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175.

The product of its digits is 23328, while the sum is 39.

The square root of 12983961 is about 3603.3263798884. The cubic root of 12983961 is about 235.0367288299.

The spelling of 12983961 in words is "twelve million, nine hundred eighty-three thousand, nine hundred sixty-one".

Divisors: 1 3 1933 2239 5799 6717 4327987 12983961