Search a number
-
+
14391131 = 67347619
BaseRepresentation
bin110110111001…
…011101011011
31000002010220212
4312321131123
512141004011
61232241335
7233215436
oct66713533
930063825
1014391131
11813a2a7
1249a024b
132c9b481
141ca881d
1513e408b
hexdb975b

14391131 has 8 divisors (see below), whose sum is σ = 14671680. Its totient is φ = 14112648.

The previous prime is 14391127. The next prime is 14391133. The reversal of 14391131 is 13119341.

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

It is a cyclic number.

It is not a de Polignac number, because 14391131 - 22 = 14391127 is a prime.

It is a super-2 number, since 2×143911312 = 414209302918322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14391097 and 14391106.

It is not an unprimeable number, because it can be changed into a prime (14391133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22940 + ... + 23558.

It is an arithmetic number, because the mean of its divisors is an integer number (1833960).

Almost surely, 214391131 is an apocalyptic number.

14391131 is a deficient number, since it is larger than the sum of its proper divisors (280549).

14391131 is an equidigital number, since it uses as much as digits as its factorization.

14391131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033.

The product of its digits is 324, while the sum is 23.

The square root of 14391131 is about 3793.5644188546. The cubic root of 14391131 is about 243.2381222972.

The spelling of 14391131 in words is "fourteen million, three hundred ninety-one thousand, one hundred thirty-one".

Divisors: 1 67 347 619 23249 41473 214793 14391131