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13162442 = 26581221
BaseRepresentation
bin110010001101…
…011111001010
3220202201110212
4302031133022
511332144232
61150041122
7216610316
oct62153712
926681425
1013162442
117480157
1244a91a2
13295b137
141a68b46
15124eeb2
hexc8d7ca

13162442 has 4 divisors (see below), whose sum is σ = 19743666. Its totient is φ = 6581220.

The previous prime is 13162399. The next prime is 13162451. The reversal of 13162442 is 24426131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24426131 = 181134951.

It can be written as a sum of positive squares in only one way, i.e., 7349521 + 5812921 = 2711^2 + 2411^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3290609 + ... + 3290612.

Almost surely, 213162442 is an apocalyptic number.

13162442 is a deficient number, since it is larger than the sum of its proper divisors (6581224).

13162442 is an equidigital number, since it uses as much as digits as its factorization.

13162442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581223.

The product of its digits is 1152, while the sum is 23.

The square root of 13162442 is about 3628.0079933760. The cubic root of 13162442 is about 236.1087906926.

Adding to 13162442 its reverse (24426131), we get a palindrome (37588573).

The spelling of 13162442 in words is "thirteen million, one hundred sixty-two thousand, four hundred forty-two".

Divisors: 1 2 6581221 13162442