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2489960 = 235115659
BaseRepresentation
bin1001011111111001101000
311200111120202
421133321220
51114134320
6125211332
730110234
oct11377150
94614522
102489960
111450820
12a00b48
13692465
1448b5c4
15342b75
hex25fe68

2489960 has 32 divisors (see below), whose sum is σ = 6112800. Its totient is φ = 905280.

The previous prime is 2489947. The next prime is 2489999. The reversal of 2489960 is 699842.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 2390 + ... + 3269.

It is an arithmetic number, because the mean of its divisors is an integer number (191025).

22489960 is an apocalyptic number.

2489960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2489960 is an abundant number, since it is smaller than the sum of its proper divisors (3622840).

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

2489960 is a wasteful number, since it uses less digits than its factorization.

2489960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5677 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2489960 is about 1577.9607092700. The cubic root of 2489960 is about 135.5389520508.

The spelling of 2489960 in words is "two million, four hundred eighty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 5659 11318 22636 28295 45272 56590 62249 113180 124498 226360 248996 311245 497992 622490 1244980 2489960