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30223121986 = 2234315279637
BaseRepresentation
bin11100001001011100…
…000011111001000010
32220000022010200012101
4130021130003321002
5443344104400421
621515002221014
72116646204161
oct341134037102
986008120171
1030223121986
11118aa189972
125a357b476a
132b08686845
141669d293d8
15bbd4ee191
hex709703e42

30223121986 has 16 divisors (see below), whose sum is σ = 48405893184. Its totient is φ = 14118383664.

The previous prime is 30223121959. The next prime is 30223121987. The reversal of 30223121986 is 68912132203.

It is not an unprimeable number, because it can be changed into a prime (30223121987) 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, 7637841 + ... + 7641796.

It is an arithmetic number, because the mean of its divisors is an integer number (3025368324).

Almost surely, 230223121986 is an apocalyptic number.

30223121986 is a deficient number, since it is larger than the sum of its proper divisors (18182771198).

30223121986 is a wasteful number, since it uses less digits than its factorization.

30223121986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15279705.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 30223121986 in words is "thirty billion, two hundred twenty-three million, one hundred twenty-one thousand, nine hundred eighty-six".

Divisors: 1 2 23 43 46 86 989 1978 15279637 30559274 351431651 657024391 702863302 1314048782 15111560993 30223121986