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2490380 = 225239521
BaseRepresentation
bin1001100000000000001100
311200112011022
421200000030
51114143010
6125213312
730111404
oct11400014
94615138
102490380
111451072
12a01238
136926c9
1448b804
15342d55
hex26000c

2490380 has 24 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 990080.

The previous prime is 2490377. The next prime is 2490391. The reversal of 2490380 is 830942.

It is an Ulam number.

It is a d-powerful number, because it can be written as 217 + 49 + 9 + 0 + 3 + 87 + 0 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4520 + ... + 5040.

It is an arithmetic number, because the mean of its divisors is an integer number (219240).

22490380 is an apocalyptic number.

2490380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2490380 is an abundant number, since it is smaller than the sum of its proper divisors (2771380).

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

2490380 is a wasteful number, since it uses less digits than its factorization.

2490380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 767 counting only the distinct ones).

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

The square root of 2490380 is about 1578.0937868200. The cubic root of 2490380 is about 135.5465724088.

The spelling of 2490380 in words is "two million, four hundred ninety thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 239 478 521 956 1042 1195 2084 2390 2605 4780 5210 10420 124519 249038 498076 622595 1245190 2490380