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23211269 is a prime number
BaseRepresentation
bin101100010001…
…0110100000101
31121200020212122
41120202310011
521420230034
62145255325
7401202224
oct130426405
947606778
1023211269
1112113a74
127934545
134a68ca3
143122cbb
15208762e
hex1622d05

23211269 has 2 divisors, whose sum is σ = 23211270. Its totient is φ = 23211268.

The previous prime is 23211257. The next prime is 23211277. The reversal of 23211269 is 96211232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13786369 + 9424900 = 3713^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211269 - 224 = 6434053 is a prime.

It is a super-2 number, since 2×232112692 = 1077526017180722, 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 (23211229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605634 + 11605635.

It is an arithmetic number, because the mean of its divisors is an integer number (11605635).

Almost surely, 223211269 is an apocalyptic number.

It is an amenable number.

23211269 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211269 is an equidigital number, since it uses as much as digits as its factorization.

23211269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 23211269 is about 4817.8074888895. The cubic root of 23211269 is about 285.2548003452.

The spelling of 23211269 in words is "twenty-three million, two hundred eleven thousand, two hundred sixty-nine".