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223030901 is a prime number
BaseRepresentation
bin11010100101100…
…10111001110101
3120112200010212202
431102302321311
5424043442101
634044154245
75345505602
oct1522627165
9515603782
10223030901
11104993465
1262838985
133728c162
14218996a9
15148a836b
hexd4b2e75

223030901 has 2 divisors, whose sum is σ = 223030902. Its totient is φ = 223030900.

The previous prime is 223030897. The next prime is 223030919. The reversal of 223030901 is 109030322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214036900 + 8994001 = 14630^2 + 2999^2 .

It is a cyclic number.

It is not a de Polignac number, because 223030901 - 22 = 223030897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223030991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111515450 + 111515451.

It is an arithmetic number, because the mean of its divisors is an integer number (111515451).

Almost surely, 2223030901 is an apocalyptic number.

It is an amenable number.

223030901 is a deficient number, since it is larger than the sum of its proper divisors (1).

223030901 is an equidigital number, since it uses as much as digits as its factorization.

223030901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 223030901 is about 14934.2191292347. The cubic root of 223030901 is about 606.4407082599.

The spelling of 223030901 in words is "two hundred twenty-three million, thirty thousand, nine hundred one".