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2560980 = 223542683
BaseRepresentation
bin1001110001001111010100
311211010000010
421301033110
51123422410
6130520220
730524262
oct11611724
94733003
102560980
11149a114
12a36070
136b8896
144a9432
15358c20
hex2713d4

2560980 has 24 divisors (see below), whose sum is σ = 7170912. Its totient is φ = 682912.

The previous prime is 2560979. The next prime is 2560993. The reversal of 2560980 is 890652.

2560980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21282 + ... + 21401.

It is an arithmetic number, because the mean of its divisors is an integer number (298788).

22560980 is an apocalyptic number.

2560980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2560980 is an abundant number, since it is smaller than the sum of its proper divisors (4609932).

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

2560980 is a wasteful number, since it uses less digits than its factorization.

2560980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42695 (or 42693 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2560980 is about 1600.3062206965. The cubic root of 2560980 is about 136.8155295116.

The spelling of 2560980 in words is "two million, five hundred sixty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 42683 85366 128049 170732 213415 256098 426830 512196 640245 853660 1280490 2560980