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22672109 = 109208001
BaseRepresentation
bin101011001111…
…1001011101101
31120122212021202
41112133023231
521301001414
62125535245
7363465305
oct126371355
946585252
1022672109
1111885989
127714525
13490a765
143022605
151ecc9de
hex159f2ed

22672109 has 4 divisors (see below), whose sum is σ = 22880220. Its totient is φ = 22464000.

The previous prime is 22672103. The next prime is 22672141. The reversal of 22672109 is 90127622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18062500 + 4609609 = 4250^2 + 2147^2 .

It is a cyclic number.

It is not a de Polignac number, because 22672109 - 28 = 22671853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22672103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103892 + ... + 104109.

It is an arithmetic number, because the mean of its divisors is an integer number (5720055).

Almost surely, 222672109 is an apocalyptic number.

It is an amenable number.

22672109 is a deficient number, since it is larger than the sum of its proper divisors (208111).

22672109 is a wasteful number, since it uses less digits than its factorization.

22672109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208110.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 22672109 is about 4761.5238107144. The cubic root of 22672109 is about 283.0288066836.

The spelling of 22672109 in words is "twenty-two million, six hundred seventy-two thousand, one hundred nine".

Divisors: 1 109 208001 22672109