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13944310 = 251394431
BaseRepresentation
bin110101001100…
…010111110110
3222020102222221
4311030113312
512032204220
61214512554
7226344652
oct65142766
928212887
1013944310
117964626
12480575a
132b72c93
141bcda62
1513569aa
hexd4c5f6

13944310 has 8 divisors (see below), whose sum is σ = 25099776. Its totient is φ = 5577720.

The previous prime is 13944299. The next prime is 13944323. The reversal of 13944310 is 1344931.

It is a happy number.

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

It is a super-2 number, since 2×139443102 = 388887562752200, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697206 + ... + 697225.

It is an arithmetic number, because the mean of its divisors is an integer number (3137472).

Almost surely, 213944310 is an apocalyptic number.

13944310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13944310 is a deficient number, since it is larger than the sum of its proper divisors (11155466).

13944310 is a wasteful number, since it uses less digits than its factorization.

13944310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394438.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13944310 is about 3734.2080820436. The cubic root of 13944310 is about 240.6942283521.

The spelling of 13944310 in words is "thirteen million, nine hundred forty-four thousand, three hundred ten".

Divisors: 1 2 5 10 1394431 2788862 6972155 13944310