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22169069 = 134141593
BaseRepresentation
bin101010010010…
…0010111101101
31112201022020122
41110210113231
521133402234
62111054325
7356301566
oct124442755
945638218
1022169069
1111571a4a
1275113a5
1347927c0
142d3116d
151e2d92e
hex15245ed

22169069 has 8 divisors (see below), whose sum is σ = 24457272. Its totient is φ = 19964160.

The previous prime is 22169057. The next prime is 22169093. The reversal of 22169069 is 96096122.

It can be written as a sum of positive squares in 4 ways, for example, as 1357225 + 20811844 = 1165^2 + 4562^2 .

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 22169069 - 24 = 22169053 is a prime.

It is a super-2 number, since 2×221690692 = 982935240653522, which contains 22 as substring.

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 (22169269) 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 7 ways as a sum of consecutive naturals, for example, 20264 + ... + 21329.

It is an arithmetic number, because the mean of its divisors is an integer number (3057159).

Almost surely, 222169069 is an apocalyptic number.

It is an amenable number.

22169069 is a deficient number, since it is larger than the sum of its proper divisors (2288203).

22169069 is a wasteful number, since it uses less digits than its factorization.

22169069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41647.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 22169069 is about 4708.4040820643. The cubic root of 22169069 is about 280.9198869909.

The spelling of 22169069 in words is "twenty-two million, one hundred sixty-nine thousand, sixty-nine".

Divisors: 1 13 41 533 41593 540709 1705313 22169069