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22950909 = 322550101
BaseRepresentation
bin101011110001…
…1001111111101
31121012000201200
41113203033331
521333412114
62135530113
7366036162
oct127431775
947160650
1022950909
1111a563a3
127829939
1349a7627
143096069
152035409
hex15e33fd

22950909 has 6 divisors (see below), whose sum is σ = 33151326. Its totient is φ = 15300600.

The previous prime is 22950887. The next prime is 22950913. The reversal of 22950909 is 90905922.

It can be written as a sum of positive squares in only one way, i.e., 17614809 + 5336100 = 4197^2 + 2310^2 .

It is not a de Polignac number, because 22950909 - 220 = 21902333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22950929) 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 5 ways as a sum of consecutive naturals, for example, 1275042 + ... + 1275059.

It is an arithmetic number, because the mean of its divisors is an integer number (5525221).

Almost surely, 222950909 is an apocalyptic number.

It is an amenable number.

22950909 is a deficient number, since it is larger than the sum of its proper divisors (10200417).

22950909 is a wasteful number, since it uses less digits than its factorization.

22950909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550107 (or 2550104 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 22950909 is about 4790.7106988421. The cubic root of 22950909 is about 284.1842230314.

The spelling of 22950909 in words is "twenty-two million, nine hundred fifty thousand, nine hundred nine".

Divisors: 1 3 9 2550101 7650303 22950909