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22202313 = 372936457
BaseRepresentation
bin101010010110…
…0011111001001
31112202222211220
41110230133021
521140433223
62111512253
7356500530
oct124543711
945688756
1022202313
1111594a21
127528689
1347a4983
142d3d317
151e386e3
hex152c7c9

22202313 has 16 divisors (see below), whose sum is σ = 34999680. Its totient is φ = 12249216.

The previous prime is 22202309. The next prime is 22202321. The reversal of 22202313 is 31320222.

It is not a de Polignac number, because 22202313 - 22 = 22202309 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22202292 and 22202301.

It is not an unprimeable number, because it can be changed into a prime (22204313) 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 15 ways as a sum of consecutive naturals, for example, 17620 + ... + 18837.

It is an arithmetic number, because the mean of its divisors is an integer number (2187480).

Almost surely, 222202313 is an apocalyptic number.

It is an amenable number.

22202313 is a deficient number, since it is larger than the sum of its proper divisors (12797367).

22202313 is a wasteful number, since it uses less digits than its factorization.

22202313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36496.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22202313 is about 4711.9330428180. The cubic root of 22202313 is about 281.0602362391.

Adding to 22202313 its reverse (31320222), we get a palindrome (53522535).

The spelling of 22202313 in words is "twenty-two million, two hundred two thousand, three hundred thirteen".

Divisors: 1 3 7 21 29 87 203 609 36457 109371 255199 765597 1057253 3171759 7400771 22202313