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13944270 = 235464809
BaseRepresentation
bin110101001100…
…010111001110
3222020102221110
4311030113032
512032204040
61214512450
7226344564
oct65142716
928212843
1013944270
11796459a
124805726
132b72c62
141bcda34
151356980
hexd4c5ce

13944270 has 16 divisors (see below), whose sum is σ = 33466320. Its totient is φ = 3718464.

The previous prime is 13944263. The next prime is 13944283. The reversal of 13944270 is 7244931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 464809 = 13944270 / (1 + 3 + 9 + 4 + 4 + 2 + 7 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 232375 + ... + 232434.

It is an arithmetic number, because the mean of its divisors is an integer number (2091645).

Almost surely, 213944270 is an apocalyptic number.

13944270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13944270 is an abundant number, since it is smaller than the sum of its proper divisors (19522050).

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

13944270 is a wasteful number, since it uses less digits than its factorization.

13944270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464819.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13944270 is about 3734.2027261519. The cubic root of 13944270 is about 240.6939982038.

The spelling of 13944270 in words is "thirteen million, nine hundred forty-four thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 464809 929618 1394427 2324045 2788854 4648090 6972135 13944270