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22332989 = 731971061
BaseRepresentation
bin101010100110…
…0011000111101
31120000122002202
41111030120331
521204123424
62114401245
7360553520
oct125143075
946018082
1022332989
1111674118
127590225
13481c2b3
142d74bb7
151e622ae
hex154c63d

22332989 has 16 divisors (see below), whose sum is σ = 26643456. Its totient is φ = 18316800.

The previous prime is 22332971. The next prime is 22332997. The reversal of 22332989 is 98923322.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22332989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22332949) 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 15 ways as a sum of consecutive naturals, for example, 20519 + ... + 21579.

It is an arithmetic number, because the mean of its divisors is an integer number (1665216).

Almost surely, 222332989 is an apocalyptic number.

It is an amenable number.

22332989 is a deficient number, since it is larger than the sum of its proper divisors (4310467).

22332989 is a wasteful number, since it uses less digits than its factorization.

22332989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its digits is 46656, while the sum is 38.

The square root of 22332989 is about 4725.7791950111. The cubic root of 22332989 is about 281.6105693791.

The spelling of 22332989 in words is "twenty-two million, three hundred thirty-two thousand, nine hundred eighty-nine".

Divisors: 1 7 31 97 217 679 1061 3007 7427 21049 32891 102917 230237 720419 3190427 22332989