Search a number
-
+
22680239 = 30773877
BaseRepresentation
bin101011010000…
…1001010101111
31120200021102212
41112201022233
521301231424
62130041035
7363531101
oct126411257
946607385
1022680239
1111890aaa
12771917b
13491137a
143025571
151ed010e
hex15a12af

22680239 has 4 divisors (see below), whose sum is σ = 22754424. Its totient is φ = 22606056.

The previous prime is 22680211. The next prime is 22680241. The reversal of 22680239 is 93208622.

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 22680239 - 216 = 22614703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22680209) 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 3 ways as a sum of consecutive naturals, for example, 36632 + ... + 37245.

It is an arithmetic number, because the mean of its divisors is an integer number (5688606).

Almost surely, 222680239 is an apocalyptic number.

22680239 is a deficient number, since it is larger than the sum of its proper divisors (74185).

22680239 is an equidigital number, since it uses as much as digits as its factorization.

22680239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74184.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22680239 is about 4762.3774524916. The cubic root of 22680239 is about 283.0626331090.

The spelling of 22680239 in words is "twenty-two million, six hundred eighty thousand, two hundred thirty-nine".

Divisors: 1 307 73877 22680239