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13023966 = 237193019
BaseRepresentation
bin110001101011…
…101011011110
3220111200112010
4301223223132
511313231331
61143052050
7215462514
oct61535336
926450463
1013023966
11739610a
124441026
1329100b7
141a304b4
151223e46
hexc6bade

13023966 has 16 divisors (see below), whose sum is σ = 26092800. Its totient is φ = 4333848.

The previous prime is 13023961. The next prime is 13023971. The reversal of 13023966 is 66932031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13023961) and next prime (13023971).

It is a super-5 number, since 5×130239665 (a number of 37 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023961) 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, 2805 + ... + 5823.

It is an arithmetic number, because the mean of its divisors is an integer number (1630800).

Almost surely, 213023966 is an apocalyptic number.

13023966 is an abundant number, since it is smaller than the sum of its proper divisors (13068834).

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

13023966 is a wasteful number, since it uses less digits than its factorization.

13023966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 13023966 is about 3608.8732313563. The cubic root of 13023966 is about 235.2778726015.

Adding to 13023966 its reverse (66932031), we get a palindrome (79955997).

It can be divided in two parts, 130239 and 66, that added together give a triangular number (130305 = T510).

The spelling of 13023966 in words is "thirteen million, twenty-three thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 719 1438 2157 3019 4314 6038 9057 18114 2170661 4341322 6511983 13023966