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21314119 = 173123203
BaseRepresentation
bin101000101001…
…1101001000111
31111002212110211
41101103221013
520424022434
62040500251
7346111201
oct121235107
944085424
1021314119
1111038682
12717a687
134553608
142b8b771
151d10464
hex1453a47

21314119 has 4 divisors (see below), whose sum is σ = 21437496. Its totient is φ = 21190744.

The previous prime is 21314087. The next prime is 21314149. The reversal of 21314119 is 91141312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21314119 - 25 = 21314087 is a prime.

It is a super-2 number, since 2×213141192 = 908583337492322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 21314119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314149) 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, 61429 + ... + 61774.

It is an arithmetic number, because the mean of its divisors is an integer number (5359374).

Almost surely, 221314119 is an apocalyptic number.

21314119 is a deficient number, since it is larger than the sum of its proper divisors (123377).

21314119 is a wasteful number, since it uses less digits than its factorization.

21314119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123376.

The product of its digits is 216, while the sum is 22.

The square root of 21314119 is about 4616.7216723558. The cubic root of 21314119 is about 277.2612192629.

The spelling of 21314119 in words is "twenty-one million, three hundred fourteen thousand, one hundred nineteen".

Divisors: 1 173 123203 21314119