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22282013 = 1315111351
BaseRepresentation
bin101010011111…
…1111100011101
31112221001011202
41110333330131
521201011023
62113325245
7360252065
oct124777435
945831152
1022282013
1111639896
127566825
134802030
142d603a5
151e52128
hex153ff1d

22282013 has 8 divisors (see below), whose sum is σ = 24157056. Its totient is φ = 20430000.

The previous prime is 22281997. The next prime is 22282021. The reversal of 22282013 is 31028222.

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 22282013 - 24 = 22281997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22272013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3713 + ... + 7638.

It is an arithmetic number, because the mean of its divisors is an integer number (3019632).

Almost surely, 222282013 is an apocalyptic number.

It is an amenable number.

22282013 is a deficient number, since it is larger than the sum of its proper divisors (1875043).

22282013 is a wasteful number, since it uses less digits than its factorization.

22282013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11515.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 22282013 is about 4720.3827175347. The cubic root of 22282013 is about 281.3961434386.

The spelling of 22282013 in words is "twenty-two million, two hundred eighty-two thousand, thirteen".

Divisors: 1 13 151 1963 11351 147563 1714001 22282013