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22485361 = 163137947
BaseRepresentation
bin101010111000…
…1100101110001
31120022101010011
41111301211301
521224012421
62121534521
7362056663
oct125614561
946271104
1022485361
1111768648
127644441
134873762
142db4533
151e924e1
hex1571971

22485361 has 4 divisors (see below), whose sum is σ = 22623472. Its totient is φ = 22347252.

The previous prime is 22485349. The next prime is 22485371. The reversal of 22485361 is 16358422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16358422 = 28179211.

It is a cyclic number.

It is not a de Polignac number, because 22485361 - 29 = 22484849 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22485371) 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, 68811 + ... + 69136.

It is an arithmetic number, because the mean of its divisors is an integer number (5655868).

Almost surely, 222485361 is an apocalyptic number.

It is an amenable number.

22485361 is a deficient number, since it is larger than the sum of its proper divisors (138111).

22485361 is a wasteful number, since it uses less digits than its factorization.

22485361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138110.

The product of its digits is 11520, while the sum is 31.

The square root of 22485361 is about 4741.8731530905. The cubic root of 22485361 is about 282.2495694860.

The spelling of 22485361 in words is "twenty-two million, four hundred eighty-five thousand, three hundred sixty-one".

Divisors: 1 163 137947 22485361