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23030957 is a prime number
BaseRepresentation
bin101011111011…
…0110010101101
31121100002112102
41113312302231
521343442312
62141344445
7366521435
oct127666255
947302472
1023030957
1112000554
127868125
134a04bb1
1430b72c5
15204dec2
hex15f6cad

23030957 has 2 divisors, whose sum is σ = 23030958. Its totient is φ = 23030956.

The previous prime is 23030947. The next prime is 23030963. The reversal of 23030957 is 75903032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21659716 + 1371241 = 4654^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 23030957 - 24 = 23030941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23030947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515478 + 11515479.

It is an arithmetic number, because the mean of its divisors is an integer number (11515479).

Almost surely, 223030957 is an apocalyptic number.

It is an amenable number.

23030957 is a deficient number, since it is larger than the sum of its proper divisors (1).

23030957 is an equidigital number, since it uses as much as digits as its factorization.

23030957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 23030957 is about 4799.0579283855. The cubic root of 23030957 is about 284.5142314944.

Adding to 23030957 its reverse (75903032), we get a palindrome (98933989).

The spelling of 23030957 in words is "twenty-three million, thirty thousand, nine hundred fifty-seven".