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22680531 = 325094951
BaseRepresentation
bin101011010000…
…1001111010011
31120200021211200
41112201033103
521301234111
62130042243
7363531666
oct126411723
946607750
1022680531
1111891245
127719383
134911543
1430256dd
151ed0256
hex15a13d3

22680531 has 12 divisors (see below), whose sum is σ = 32831760. Its totient is φ = 15087600.

The previous prime is 22680529. The next prime is 22680551. The reversal of 22680531 is 13508622.

It is not a de Polignac number, because 22680531 - 21 = 22680529 is a prime.

It is a super-2 number, since 2×226805312 = 1028812972883922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22680495 and 22680504.

It is not an unprimeable number, because it can be changed into a prime (22680521) 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, 2106 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (2735980).

Almost surely, 222680531 is an apocalyptic number.

22680531 is a deficient number, since it is larger than the sum of its proper divisors (10151229).

22680531 is a wasteful number, since it uses less digits than its factorization.

22680531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5466 (or 5463 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 22680531 is about 4762.4081093497. The cubic root of 22680531 is about 283.0638478807.

The spelling of 22680531 in words is "twenty-two million, six hundred eighty thousand, five hundred thirty-one".

Divisors: 1 3 9 509 1527 4581 4951 14853 44559 2520059 7560177 22680531