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22673989 = 133156263
BaseRepresentation
bin101011001111…
…1101001000101
31120122221212101
41112133221011
521301031424
62125552101
7363503632
oct126375105
946587771
1022673989
1111887338
127715631
13490b580
143023189
151ecd344
hex159fa45

22673989 has 8 divisors (see below), whose sum is σ = 25206272. Its totient is φ = 20254320.

The previous prime is 22673957. The next prime is 22673993. The reversal of 22673989 is 98937622.

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 22673989 - 25 = 22673957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22673909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27729 + ... + 28534.

It is an arithmetic number, because the mean of its divisors is an integer number (3150784).

Almost surely, 222673989 is an apocalyptic number.

It is an amenable number.

22673989 is a deficient number, since it is larger than the sum of its proper divisors (2532283).

22673989 is a wasteful number, since it uses less digits than its factorization.

22673989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56307.

The product of its digits is 326592, while the sum is 46.

The square root of 22673989 is about 4761.7212224153. The cubic root of 22673989 is about 283.0366295031.

The spelling of 22673989 in words is "twenty-two million, six hundred seventy-three thousand, nine hundred eighty-nine".

Divisors: 1 13 31 403 56263 731419 1744153 22673989