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22032980 = 2251101649
BaseRepresentation
bin101010000001…
…1001001010100
31112110101120022
41110003021110
521120023410
62104124312
7355164044
oct124031124
945411508
1022032980
1111489782
127466698
134745888
142cd7724
151e03455
hex1503254

22032980 has 12 divisors (see below), whose sum is σ = 46269300. Its totient is φ = 8813184.

The previous prime is 22032977. The next prime is 22033007. The reversal of 22032980 is 8923022.

It can be written as a sum of positive squares in 2 ways, for example, as 10837264 + 11195716 = 3292^2 + 3346^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550805 + ... + 550844.

It is an arithmetic number, because the mean of its divisors is an integer number (3855775).

Almost surely, 222032980 is an apocalyptic number.

22032980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22032980 is an abundant number, since it is smaller than the sum of its proper divisors (24236320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22032980 is a wasteful number, since it uses less digits than its factorization.

22032980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101658 (or 1101656 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22032980 is about 4693.9301230419. The cubic root of 22032980 is about 280.3438802139.

The spelling of 22032980 in words is "twenty-two million, thirty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1101649 2203298 4406596 5508245 11016490 22032980