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22140131 = 134993413
BaseRepresentation
bin101010001110…
…1010011100011
31112122211112212
41110131103203
521131441011
62110312335
7356121326
oct124352343
945584485
1022140131
1111552232
1274b86ab
134782590
142d247bd
151e2508b
hex151d4e3

22140131 has 8 divisors (see below), whose sum is σ = 23898000. Its totient is φ = 20390112.

The previous prime is 22140121. The next prime is 22140199. The reversal of 22140131 is 13104122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22140131 is a prime.

It is a super-2 number, since 2×221401312 = 980370801394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22140121) 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 7 ways as a sum of consecutive naturals, for example, 4781 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (2987250).

Almost surely, 222140131 is an apocalyptic number.

22140131 is a deficient number, since it is larger than the sum of its proper divisors (1757869).

22140131 is a wasteful number, since it uses less digits than its factorization.

22140131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 22140131 is about 4705.3300628117. The cubic root of 22140131 is about 280.7976025085.

Adding to 22140131 its reverse (13104122), we get a palindrome (35244253).

The spelling of 22140131 in words is "twenty-two million, one hundred forty thousand, one hundred thirty-one".

Divisors: 1 13 499 3413 6487 44369 1703087 22140131