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13022983 = 23415563
BaseRepresentation
bin110001101011…
…011100000111
3220111122011201
4301223130013
511313213413
61143043331
7215456611
oct61533407
926448151
1013022983
1173953a6
124440547
13290c80c
141a2ddb1
1512239dd
hexc6b707

13022983 has 4 divisors (see below), whose sum is σ = 13030888. Its totient is φ = 13015080.

The previous prime is 13022963. The next prime is 13023013. The reversal of 13022983 is 38922031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 38922031 = 291342139.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13022983 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022963) 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 3 ways as a sum of consecutive naturals, for example, 441 + ... + 5122.

It is an arithmetic number, because the mean of its divisors is an integer number (3257722).

Almost surely, 213022983 is an apocalyptic number.

13022983 is a deficient number, since it is larger than the sum of its proper divisors (7905).

13022983 is an equidigital number, since it uses as much as digits as its factorization.

13022983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13022983 is about 3608.7370366930. The cubic root of 13022983 is about 235.2719531561.

It can be divided in two parts, 130 and 22983, that multiplied together give a triangular number (2987790 = T2444).

The spelling of 13022983 in words is "thirteen million, twenty-two thousand, nine hundred eighty-three".

Divisors: 1 2341 5563 13022983