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22124331 = 326613719
BaseRepresentation
bin101010001100…
…1011100101011
31112122000212200
41110121130223
521130434311
62110111243
7356024265
oct124313453
945560780
1022124331
1111541379
1274ab523
134778328
142d1cb35
151e20556
hex151972b

22124331 has 12 divisors (see below), whose sum is σ = 32014320. Its totient is φ = 14723280.

The previous prime is 22124309. The next prime is 22124339. The reversal of 22124331 is 13342122.

It is not a de Polignac number, because 22124331 - 25 = 22124299 is a prime.

It is a super-2 number, since 2×221243312 = 978972044395122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124339) 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 11 ways as a sum of consecutive naturals, for example, 4090 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (2667860).

Almost surely, 222124331 is an apocalyptic number.

22124331 is a deficient number, since it is larger than the sum of its proper divisors (9889989).

22124331 is a wasteful number, since it uses less digits than its factorization.

22124331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386 (or 4383 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22124331 is about 4703.6508161215. The cubic root of 22124331 is about 280.7307908304.

Adding to 22124331 its reverse (13342122), we get a palindrome (35466453).

The spelling of 22124331 in words is "twenty-two million, one hundred twenty-four thousand, three hundred thirty-one".

Divisors: 1 3 9 661 1983 3719 5949 11157 33471 2458259 7374777 22124331