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12220089 = 37581909
BaseRepresentation
bin101110100111…
…011010111001
3211222211210220
4232213122321
511112020324
61113530253
7205604040
oct56473271
924884726
1012220089
116997152
124113989
1326bb22b
1418a1557
151115b79
hexba76b9

12220089 has 8 divisors (see below), whose sum is σ = 18621120. Its totient is φ = 6982896.

The previous prime is 12220081. The next prime is 12220111. The reversal of 12220089 is 98002221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12220089 - 23 = 12220081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12220081) 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, 290934 + ... + 290975.

It is an arithmetic number, because the mean of its divisors is an integer number (2327640).

Almost surely, 212220089 is an apocalyptic number.

It is an amenable number.

12220089 is a deficient number, since it is larger than the sum of its proper divisors (6401031).

12220089 is an equidigital number, since it uses as much as digits as its factorization.

12220089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581919.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12220089 is about 3495.7243884494. The cubic root of 12220089 is about 230.3340388857.

The spelling of 12220089 in words is "twelve million, two hundred twenty thousand, eighty-nine".

Divisors: 1 3 7 21 581909 1745727 4073363 12220089