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22230965 = 5291391103
BaseRepresentation
bin101010011001…
…1011110110101
31112211110011002
41110303132311
521142342330
62112253045
7356650211
oct124633665
945743132
1022230965
11116044a9
127541185
1347b4a23
142d49941
151e41e45
hex15337b5

22230965 has 16 divisors (see below), whose sum is σ = 27820800. Its totient is φ = 17032512.

The previous prime is 22230959. The next prime is 22230991. The reversal of 22230965 is 56903222.

It is not a de Polignac number, because 22230965 - 28 = 22230709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19604 + ... + 20706.

It is an arithmetic number, because the mean of its divisors is an integer number (1738800).

Almost surely, 222230965 is an apocalyptic number.

It is an amenable number.

22230965 is a deficient number, since it is larger than the sum of its proper divisors (5589835).

22230965 is a wasteful number, since it uses less digits than its factorization.

22230965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 22230965 is about 4714.9724283393. The cubic root of 22230965 is about 281.1810866550.

The spelling of 22230965 in words is "twenty-two million, two hundred thirty thousand, nine hundred sixty-five".

Divisors: 1 5 29 139 145 695 1103 4031 5515 20155 31987 153317 159935 766585 4446193 22230965