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13944294 = 2327138513
BaseRepresentation
bin110101001100…
…010111100110
3222020102222100
4311030113212
512032204134
61214512530
7226344630
oct65142746
928212870
1013944294
117964611
124805746
132b72c80
141bcda50
151356999
hexd4c5e6

13944294 has 48 divisors (see below), whose sum is σ = 37189152. Its totient is φ = 3677184.

The previous prime is 13944283. The next prime is 13944299. The reversal of 13944294 is 49244931.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13944299) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 2619 + ... + 5894.

It is an arithmetic number, because the mean of its divisors is an integer number (774774).

Almost surely, 213944294 is an apocalyptic number.

13944294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13944294 is an abundant number, since it is smaller than the sum of its proper divisors (23244858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13944294 is a wasteful number, since it uses less digits than its factorization.

13944294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8541 (or 8538 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13944294 is about 3734.2059396878. The cubic root of 13944294 is about 240.6941362929.

The spelling of 13944294 in words is "thirteen million, nine hundred forty-four thousand, two hundred ninety-four".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 8513 17026 25539 51078 59591 76617 110669 119182 153234 178773 221338 332007 357546 536319 664014 774683 996021 1072638 1549366 1992042 2324049 4648098 6972147 13944294