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30822490 = 2518117029
BaseRepresentation
bin111010110010…
…1000001011010
32010222221111201
41311211001122
530342304430
63020344414
7522662326
oct165450132
963887451
1030822490
1116442436
12a3a510a
13650247a
144144986
152a8c8ca
hex1d6505a

30822490 has 16 divisors (see below), whose sum is σ = 55790280. Its totient is φ = 12260160.

The previous prime is 30822487. The next prime is 30822497. The reversal of 30822490 is 9422803.

It can be written as a sum of positive squares in 4 ways, for example, as 19740249 + 11082241 = 4443^2 + 3329^2 .

It is not an unprimeable number, because it can be changed into a prime (30822497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6705 + ... + 10324.

Almost surely, 230822490 is an apocalyptic number.

30822490 is a deficient number, since it is larger than the sum of its proper divisors (24967790).

30822490 is a wasteful number, since it uses less digits than its factorization.

30822490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17217.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30822490 is about 5551.8006088115. The cubic root of 30822490 is about 313.5373187601.

The spelling of 30822490 in words is "thirty million, eight hundred twenty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 181 362 905 1810 17029 34058 85145 170290 3082249 6164498 15411245 30822490