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22795021 is a prime number
BaseRepresentation
bin101011011110…
…1001100001101
31120220002220001
41112331030031
521313420041
62132324301
7364516534
oct126751415
946802801
1022795021
111195a267
127773691
1349516a2
14305531b
152004131
hex15bd30d

22795021 has 2 divisors, whose sum is σ = 22795022. Its totient is φ = 22795020.

The previous prime is 22795007. The next prime is 22795043. The reversal of 22795021 is 12059722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17732521 + 5062500 = 4211^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 22795021 - 215 = 22762253 is a prime.

It is a super-2 number, since 2×227950212 = 1039225964780882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22795051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11397510 + 11397511.

It is an arithmetic number, because the mean of its divisors is an integer number (11397511).

Almost surely, 222795021 is an apocalyptic number.

It is an amenable number.

22795021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22795021 is an equidigital number, since it uses as much as digits as its factorization.

22795021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 22795021 is about 4774.4131576561. The cubic root of 22795021 is about 283.5393452895.

The spelling of 22795021 in words is "twenty-two million, seven hundred ninety-five thousand, twenty-one".