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22828490 = 252282849
BaseRepresentation
bin101011100010…
…1010111001010
31120221210210122
41113011113022
521321002430
62133143242
7365016236
oct127052712
946853718
1022828490
1111982423
12778ab22
1349639a9
1430635c6
15200dee5
hex15c55ca

22828490 has 8 divisors (see below), whose sum is σ = 41091300. Its totient is φ = 9131392.

The previous prime is 22828483. The next prime is 22828499. The reversal of 22828490 is 9482822.

It can be written as a sum of positive squares in 2 ways, for example, as 22762441 + 66049 = 4771^2 + 257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×228284902 = 1042279911360200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22828490.

It is not an unprimeable number, because it can be changed into a prime (22828499) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1141415 + ... + 1141434.

Almost surely, 222828490 is an apocalyptic number.

22828490 is a deficient number, since it is larger than the sum of its proper divisors (18262810).

22828490 is a wasteful number, since it uses less digits than its factorization.

22828490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282856.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 22828490 is about 4777.9169101189. The cubic root of 22828490 is about 283.6780471818.

The spelling of 22828490 in words is "twenty-two million, eight hundred twenty-eight thousand, four hundred ninety".

Divisors: 1 2 5 10 2282849 4565698 11414245 22828490