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22422229 = 971391663
BaseRepresentation
bin101010110001…
…0001011010101
31120012011111221
41111202023111
521220002404
62120330341
7361404634
oct125421325
946164457
1022422229
1111725175
1276139b1
134850abb
142d9951b
151e7d954
hex15622d5

22422229 has 8 divisors (see below), whose sum is σ = 22830080. Its totient is φ = 22018176.

The previous prime is 22422227. The next prime is 22422247. The reversal of 22422229 is 92222422.

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 22422229 - 21 = 22422227 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 (22422227) 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, 12652 + ... + 14314.

It is an arithmetic number, because the mean of its divisors is an integer number (2853760).

Almost surely, 222422229 is an apocalyptic number.

It is an amenable number.

22422229 is a deficient number, since it is larger than the sum of its proper divisors (407851).

22422229 is a wasteful number, since it uses less digits than its factorization.

22422229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899.

The product of its digits is 2304, while the sum is 25.

The square root of 22422229 is about 4735.2116108998. The cubic root of 22422229 is about 281.9851651234.

The spelling of 22422229 in words is "twenty-two million, four hundred twenty-two thousand, two hundred twenty-nine".

Divisors: 1 97 139 1663 13483 161311 231157 22422229