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22064669 = 112005879
BaseRepresentation
bin101010000101…
…0111000011101
31112112000000222
41110022320131
521122032134
62104531125
7355355324
oct124127035
945460028
1022064669
1111500570
127480aa5
134757123
142d050bb
151e0ca2e
hex150ae1d

22064669 has 4 divisors (see below), whose sum is σ = 24070560. Its totient is φ = 20058780.

The previous prime is 22064639. The next prime is 22064671. The reversal of 22064669 is 96646022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22064669 - 212 = 22060573 is a prime.

It is a super-2 number, since 2×220646692 = 973699236159122, 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 (22064639) 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, 1002929 + ... + 1002950.

It is an arithmetic number, because the mean of its divisors is an integer number (6017640).

Almost surely, 222064669 is an apocalyptic number.

It is an amenable number.

22064669 is a deficient number, since it is larger than the sum of its proper divisors (2005891).

22064669 is a wasteful number, since it uses less digits than its factorization.

22064669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005890.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 22064669 is about 4697.3044397825. The cubic root of 22064669 is about 280.4782176414.

The spelling of 22064669 in words is "twenty-two million, sixty-four thousand, six hundred sixty-nine".

Divisors: 1 11 2005879 22064669