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2490018 = 232231861
BaseRepresentation
bin1001011111111010100010
311200111122220
421133322202
51114140033
6125211510
730110346
oct11377242
94614586
102490018
111450873
12a00b96
136924ab
1448b626
15342bb3
hex25fea2

2490018 has 16 divisors (see below), whose sum is σ = 5005056. Its totient is φ = 825840.

The previous prime is 2489999. The next prime is 2490023. The reversal of 2490018 is 8100942.

It is a self number, because there is not a number n which added to its sum of digits gives 2490018.

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, 408 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (312816).

22490018 is an apocalyptic number.

2490018 is an abundant number, since it is smaller than the sum of its proper divisors (2515038).

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

2490018 is a wasteful number, since it uses less digits than its factorization.

2490018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2490018 is about 1577.9790873139. The cubic root of 2490018 is about 135.5400044370.

The spelling of 2490018 in words is "two million, four hundred ninety thousand, eighteen".

Divisors: 1 2 3 6 223 446 669 1338 1861 3722 5583 11166 415003 830006 1245009 2490018