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611082980 = 22530554149
BaseRepresentation
bin100100011011000…
…110001011100100
31120120212020020222
4210123012023210
52222414123410
6140345343512
721100056014
oct4433061344
91516766228
10611082980
11293a38762
12150797b98
13997a9381
145b22dc44
15389ab955
hex246c62e4

611082980 has 12 divisors (see below), whose sum is σ = 1283274300. Its totient is φ = 244433184.

The previous prime is 611082971. The next prime is 611083007. The reversal of 611082980 is 89280116.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 547466404 = 7976^2 + 23398^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 611082980.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15277055 + ... + 15277094.

It is an arithmetic number, because the mean of its divisors is an integer number (106939525).

Almost surely, 2611082980 is an apocalyptic number.

It is an amenable number.

611082980 is an abundant number, since it is smaller than the sum of its proper divisors (672191320).

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

611082980 is a wasteful number, since it uses less digits than its factorization.

611082980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30554158 (or 30554156 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 611082980 is about 24720.0926373669. The cubic root of 611082980 is about 848.5942068417.

The spelling of 611082980 in words is "six hundred eleven million, eighty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 30554149 61108298 122216596 152770745 305541490 611082980