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22412131 = 719116763
BaseRepresentation
bin101010101111…
…1101101100011
31120011122122221
41111133231203
521214142011
62120211511
7361333330
oct125375543
946148587
1022412131
1111718625
127609b97
134849321
142d95987
151e7a971
hex155fb63

22412131 has 8 divisors (see below), whose sum is σ = 25749504. Its totient is φ = 19108680.

The previous prime is 22412129. The next prime is 22412147. The reversal of 22412131 is 13121422.

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 22412131 - 21 = 22412129 is a prime.

It is a super-2 number, since 2×224121312 = 1004607231922322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22412161) 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, 7045 + ... + 9718.

It is an arithmetic number, because the mean of its divisors is an integer number (3218688).

Almost surely, 222412131 is an apocalyptic number.

22412131 is a deficient number, since it is larger than the sum of its proper divisors (3337373).

22412131 is a wasteful number, since it uses less digits than its factorization.

22412131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961.

The product of its digits is 96, while the sum is 16.

The square root of 22412131 is about 4734.1452237970. The cubic root of 22412131 is about 281.9428274687.

Adding to 22412131 its reverse (13121422), we get a palindrome (35533553).

The spelling of 22412131 in words is "twenty-two million, four hundred twelve thousand, one hundred thirty-one".

Divisors: 1 7 191 1337 16763 117341 3201733 22412131