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22426669 = 191180351
BaseRepresentation
bin101010110001…
…1010000101101
31120012101121101
41111203100231
521220123134
62120403101
7361423606
oct125432055
946171541
1022426669
1111728541
127616491
134852b25
142d9adad
151e7ee14
hex156342d

22426669 has 4 divisors (see below), whose sum is σ = 23607040. Its totient is φ = 21246300.

The previous prime is 22426637. The next prime is 22426673. The reversal of 22426669 is 96662422.

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 22426669 - 25 = 22426637 is a prime.

It is a super-2 number, since 2×224266692 = 1005910964871122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22426619) 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, 590157 + ... + 590194.

It is an arithmetic number, because the mean of its divisors is an integer number (5901760).

Almost surely, 222426669 is an apocalyptic number.

It is an amenable number.

22426669 is a deficient number, since it is larger than the sum of its proper divisors (1180371).

22426669 is a wasteful number, since it uses less digits than its factorization.

22426669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180370.

The product of its digits is 62208, while the sum is 37.

The square root of 22426669 is about 4735.6804157375. The cubic root of 22426669 is about 282.0037765871.

It can be divided in two parts, 2242 and 6669, that added together give a triangular number (8911 = T133).

The spelling of 22426669 in words is "twenty-two million, four hundred twenty-six thousand, six hundred sixty-nine".

Divisors: 1 19 1180351 22426669