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244980 = 223251361
BaseRepresentation
bin111011110011110100
3110110001100
4323303310
530314410
65130100
72040141
oct736364
9413040
10244980
1115806a
12b9930
1387678
14653c8
154c8c0
hex3bcf4

244980 has 36 divisors (see below), whose sum is σ = 743652. Its totient is φ = 65280.

The previous prime is 244957. The next prime is 244997. The reversal of 244980 is 89442.

244980 is nontrivially palindromic in base 13.

244980 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 63504 + 181476 = 252^2 + 426^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501 + ... + 860.

It is an arithmetic number, because the mean of its divisors is an integer number (20657).

2244980 is an apocalyptic number.

244980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244980 is an abundant number, since it is smaller than the sum of its proper divisors (498672).

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

244980 is a wasteful number, since it uses less digits than its factorization.

244980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 244980 is about 494.9545433674. The cubic root of 244980 is about 62.5715447370.

The spelling of 244980 in words is "two hundred forty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1361 2722 4083 5444 6805 8166 12249 13610 16332 20415 24498 27220 40830 48996 61245 81660 122490 244980