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13342031 = 47283873
BaseRepresentation
bin110010111001…
…010101001111
3221002211211022
4302321111033
511403421111
61153544355
7221256023
oct62712517
927084738
1013342031
11759307a
1245750bb
1329c1ac1
141ab4383
1512882db
hexcb954f

13342031 has 4 divisors (see below), whose sum is σ = 13625952. Its totient is φ = 13058112.

The previous prime is 13342027. The next prime is 13342033. The reversal of 13342031 is 13024331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13342031 - 22 = 13342027 is a prime.

It is a super-2 number, since 2×133420312 = 356019582409922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13342033) 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, 141890 + ... + 141983.

It is an arithmetic number, because the mean of its divisors is an integer number (3406488).

Almost surely, 213342031 is an apocalyptic number.

13342031 is a deficient number, since it is larger than the sum of its proper divisors (283921).

13342031 is an equidigital number, since it uses as much as digits as its factorization.

13342031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283920.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13342031 is about 3652.6744995962. The cubic root of 13342031 is about 237.1777702124.

Adding to 13342031 its reverse (13024331), we get a palindrome (26366362).

The spelling of 13342031 in words is "thirteen million, three hundred forty-two thousand, thirty-one".

Divisors: 1 47 283873 13342031