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22668979 = 137337491
BaseRepresentation
bin101011001111…
…0011010110011
31120122200222211
41112132122303
521300401404
62125512551
7363453214
oct126363263
946580884
1022668979
11118835a3
127712757
1349091c8
14302140b
151ecbb04
hex159e6b3

22668979 has 8 divisors (see below), whose sum is σ = 22948848. Its totient is φ = 22391040.

The previous prime is 22668977. The next prime is 22669013. The reversal of 22668979 is 97986622.

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 22668979 - 21 = 22668977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22668977) 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, 45924 + ... + 46414.

It is an arithmetic number, because the mean of its divisors is an integer number (2868606).

Almost surely, 222668979 is an apocalyptic number.

22668979 is a deficient number, since it is larger than the sum of its proper divisors (279869).

22668979 is a wasteful number, since it uses less digits than its factorization.

22668979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its digits is 653184, while the sum is 49.

The square root of 22668979 is about 4761.1951230757. The cubic root of 22668979 is about 283.0157815620.

The spelling of 22668979 in words is "twenty-two million, six hundred sixty-eight thousand, nine hundred seventy-nine".

Divisors: 1 137 337 491 46169 67267 165467 22668979