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14013791 = 111273981
BaseRepresentation
bin110101011101…
…010101011111
3222100222022022
4311131111133
512041420131
61220210355
7230054351
oct65352537
928328268
1014013791
117a01850
1248399bb
132b987ac
141c0b0d1
15136c37b
hexd5d55f

14013791 has 4 divisors (see below), whose sum is σ = 15287784. Its totient is φ = 12739800.

The previous prime is 14013761. The next prime is 14013799. The reversal of 14013791 is 19731041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19731041 = 111793731.

It is a cyclic number.

It is not a de Polignac number, because 14013791 - 214 = 13997407 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 14013791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14013799) 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, 636980 + ... + 637001.

It is an arithmetic number, because the mean of its divisors is an integer number (3821946).

Almost surely, 214013791 is an apocalyptic number.

14013791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14013791 is a deficient number, since it is larger than the sum of its proper divisors (1273993).

14013791 is a wasteful number, since it uses less digits than its factorization.

14013791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273992.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 14013791 is about 3743.4998330439. The cubic root of 14013791 is about 241.0933391887.

It can be divided in two parts, 140 and 13791, that added together give a palindrome (13931).

The spelling of 14013791 in words is "fourteen million, thirteen thousand, seven hundred ninety-one".

Divisors: 1 11 1273981 14013791