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13442313 = 331144541
BaseRepresentation
bin110011010001…
…110100001001
3221021221101110
4303101310021
511420123223
61200040533
7222154263
oct63216411
927257343
1013442313
117651455
124603149
132a28641
141adcb33
1512a7d93
hexcd1d09

13442313 has 8 divisors (see below), whose sum is σ = 18501376. Its totient is φ = 8672400.

The previous prime is 13442309. The next prime is 13442323. The reversal of 13442313 is 31324431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13442313 - 22 = 13442309 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 13442313.

It is not an unprimeable number, because it can be changed into a prime (13442323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72178 + ... + 72363.

It is an arithmetic number, because the mean of its divisors is an integer number (2312672).

Almost surely, 213442313 is an apocalyptic number.

It is an amenable number.

13442313 is a deficient number, since it is larger than the sum of its proper divisors (5059063).

13442313 is a wasteful number, since it uses less digits than its factorization.

13442313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144575.

The product of its digits is 864, while the sum is 21.

The square root of 13442313 is about 3666.3760036308. The cubic root of 13442313 is about 237.7705165062.

Adding to 13442313 its reverse (31324431), we get a palindrome (44766744).

The spelling of 13442313 in words is "thirteen million, four hundred forty-two thousand, three hundred thirteen".

Divisors: 1 3 31 93 144541 433623 4480771 13442313