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2807490 = 235729461
BaseRepresentation
bin1010101101011011000010
312021122011010
422231123002
51204314430
6140101350
732602050
oct12553302
95248133
102807490
111648344
12b34856
13773b4a
145311d0
153a6cb0
hex2ad6c2

2807490 has 64 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 618240.

The previous prime is 2807479. The next prime is 2807521. The reversal of 2807490 is 947082.

2807490 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 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 31 ways as a sum of consecutive naturals, for example, 5860 + ... + 6320.

It is an arithmetic number, because the mean of its divisors is an integer number (124740).

22807490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2807490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3991680).

2807490 is an abundant number, since it is smaller than the sum of its proper divisors (5175870).

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

2807490 is a wasteful number, since it uses less digits than its factorization.

2807490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2807490 is about 1675.5566239313. The cubic root of 2807490 is about 141.0715395731.

The spelling of 2807490 in words is "two million, eight hundred seven thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 29 30 35 42 58 70 87 105 145 174 203 210 290 406 435 461 609 870 922 1015 1218 1383 2030 2305 2766 3045 3227 4610 6090 6454 6915 9681 13369 13830 16135 19362 26738 32270 40107 48405 66845 80214 93583 96810 133690 187166 200535 280749 401070 467915 561498 935830 1403745 2807490