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22650260 = 22510111213
BaseRepresentation
bin101011001100…
…1110110010100
31120121202022112
41112121312110
521244302020
62125250152
7363344513
oct126316624
946552275
1022650260
1111870526
127703958
134900829
14301867a
151ec62c5
hex1599d94

22650260 has 24 divisors (see below), whose sum is σ = 48040776. Its totient is φ = 8969600.

The previous prime is 22650259. The next prime is 22650263. The reversal of 22650260 is 6205622.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2274064 + 20376196 = 1508^2 + 4514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22650263) 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 7 ways as a sum of consecutive naturals, for example, 3587 + ... + 7626.

It is an arithmetic number, because the mean of its divisors is an integer number (2001699).

Almost surely, 222650260 is an apocalyptic number.

22650260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22650260 is an abundant number, since it is smaller than the sum of its proper divisors (25390516).

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

22650260 is a wasteful number, since it uses less digits than its factorization.

22650260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11323 (or 11321 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22650260 is about 4759.2289291439. The cubic root of 22650260 is about 282.9378596390.

Adding to 22650260 its reverse (6205622), we get a palindrome (28855882).

The spelling of 22650260 in words is "twenty-two million, six hundred fifty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 11213 22426 44852 56065 112130 224260 1132513 2265026 4530052 5662565 11325130 22650260