Search a number
-
+
14214981 = 311716067
BaseRepresentation
bin110110001110…
…011101000101
3222202012021210
4312032131011
512114334411
61224402033
7231553044
oct66163505
928665253
1014214981
118029a20
124916319
132c39241
141c6055b
1513abca6
hexd8e745

14214981 has 16 divisors (see below), whose sum is σ = 20971008. Its totient is φ = 8492400.

The previous prime is 14214979. The next prime is 14215001. The reversal of 14214981 is 18941241.

It is not a de Polignac number, because 14214981 - 21 = 14214979 is a prime.

It is a super-2 number, since 2×142149812 = 404131369660722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14214911) 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 15 ways as a sum of consecutive naturals, for example, 691 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (1310688).

Almost surely, 214214981 is an apocalyptic number.

14214981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14214981 is a deficient number, since it is larger than the sum of its proper divisors (6756027).

14214981 is a wasteful number, since it uses less digits than its factorization.

14214981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152.

The product of its digits is 2304, while the sum is 30.

The square root of 14214981 is about 3770.2759845932. The cubic root of 14214981 is about 242.2416194366.

The spelling of 14214981 in words is "fourteen million, two hundred fourteen thousand, nine hundred eighty-one".

Divisors: 1 3 11 33 71 213 781 2343 6067 18201 66737 200211 430757 1292271 4738327 14214981