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13442629 = 41327869
BaseRepresentation
bin110011010001…
…111001000101
3221021221211011
4303101321011
511420131004
61200042221
7222155224
oct63217105
927257734
1013442629
117651712
124603371
132a28825
141adccbb
1512a8004
hexcd1e45

13442629 has 4 divisors (see below), whose sum is σ = 13770540. Its totient is φ = 13114720.

The previous prime is 13442621. The next prime is 13442641. The reversal of 13442629 is 92624431.

It is a happy number.

13442629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 497025 + 12945604 = 705^2 + 3598^2 .

It is a cyclic number.

It is not a de Polignac number, because 13442629 - 23 = 13442621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13442629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163894 + ... + 163975.

It is an arithmetic number, because the mean of its divisors is an integer number (3442635).

Almost surely, 213442629 is an apocalyptic number.

It is an amenable number.

13442629 is a deficient number, since it is larger than the sum of its proper divisors (327911).

13442629 is an equidigital number, since it uses as much as digits as its factorization.

13442629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327910.

The product of its digits is 10368, while the sum is 31.

The square root of 13442629 is about 3666.4190977028. The cubic root of 13442629 is about 237.7723796502.

The spelling of 13442629 in words is "thirteen million, four hundred forty-two thousand, six hundred twenty-nine".

Divisors: 1 41 327869 13442629