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13022142 = 237244293
BaseRepresentation
bin110001101011…
…001110111110
3220111121000120
4301223032332
511313202032
61143035410
7215454300
oct61531676
926447016
1013022142
117394801
12443bb66
13290c313
141a2d970
15122362c
hexc6b3be

13022142 has 24 divisors (see below), whose sum is σ = 30297096. Its totient is φ = 3720528.

The previous prime is 13022129. The next prime is 13022143. The reversal of 13022142 is 24122031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022143) 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, 21853 + ... + 22440.

It is an arithmetic number, because the mean of its divisors is an integer number (1262379).

Almost surely, 213022142 is an apocalyptic number.

13022142 is an abundant number, since it is smaller than the sum of its proper divisors (17274954).

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

13022142 is a wasteful number, since it uses less digits than its factorization.

13022142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44312 (or 44305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13022142 is about 3608.6205120517. The cubic root of 13022142 is about 235.2668885721.

Adding to 13022142 its reverse (24122031), we get a palindrome (37144173).

The spelling of 13022142 in words is "thirteen million, twenty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 44293 88586 132879 265758 310051 620102 930153 1860306 2170357 4340714 6511071 13022142