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22468905 = 325499309
BaseRepresentation
bin101010110110…
…1100100101001
31120021112112200
41111231210221
521223001110
62121330413
7361661004
oct125554451
946245480
1022468905
1111757248
127636a09
134869114
142dac53b
151e8c6c0
hex156d929

22468905 has 12 divisors (see below), whose sum is σ = 38946180. Its totient is φ = 11983392.

The previous prime is 22468877. The next prime is 22468909. The reversal of 22468905 is 50986422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9659664 + 12809241 = 3108^2 + 3579^2 .

It is not a de Polignac number, because 22468905 - 27 = 22468777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22468905.

It is not an unprimeable number, because it can be changed into a prime (22468909) 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, 249610 + ... + 249699.

It is an arithmetic number, because the mean of its divisors is an integer number (3245515).

Almost surely, 222468905 is an apocalyptic number.

It is an amenable number.

22468905 is a deficient number, since it is larger than the sum of its proper divisors (16477275).

22468905 is a wasteful number, since it uses less digits than its factorization.

22468905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499320 (or 499317 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 22468905 is about 4740.1376562290. The cubic root of 22468905 is about 282.1806975288.

The spelling of 22468905 in words is "twenty-two million, four hundred sixty-eight thousand, nine hundred five".

Divisors: 1 3 5 9 15 45 499309 1497927 2496545 4493781 7489635 22468905