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22406669 = 236771439
BaseRepresentation
bin101010101111…
…0011000001101
31120011101011122
41111132120031
521214003134
62120130325
7361311365
oct125363015
946141148
1022406669
111171450a
1276069a5
1348469ac
142d939a5
151e7902e
hex155e60d

22406669 has 8 divisors (see below), whose sum is σ = 23431680. Its totient is φ = 21385936.

The previous prime is 22406653. The next prime is 22406701. The reversal of 22406669 is 96660422.

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 22406669 - 24 = 22406653 is a prime.

It is a super-2 number, since 2×224066692 = 1004117631351122, 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 (22406369) 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, 14852 + ... + 16290.

It is an arithmetic number, because the mean of its divisors is an integer number (2928960).

Almost surely, 222406669 is an apocalyptic number.

It is an amenable number.

22406669 is a deficient number, since it is larger than the sum of its proper divisors (1025011).

22406669 is a wasteful number, since it uses less digits than its factorization.

22406669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139.

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

The square root of 22406669 is about 4733.5683157635. The cubic root of 22406669 is about 281.9199217658.

The spelling of 22406669 in words is "twenty-two million, four hundred six thousand, six hundred sixty-nine".

Divisors: 1 23 677 1439 15571 33097 974203 22406669