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23031469 is a prime number
BaseRepresentation
bin101011111011…
…0111010101101
31121100010020101
41113312322231
521344001334
62141351101
7366523066
oct127667255
947303211
1023031469
111200097a
127868491
134a051b6
1430b756d
15204e214
hex15f6ead

23031469 has 2 divisors, whose sum is σ = 23031470. Its totient is φ = 23031468.

The previous prime is 23031461. The next prime is 23031473. The reversal of 23031469 is 96413032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21622500 + 1408969 = 4650^2 + 1187^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031469 - 23 = 23031461 is a prime.

It is a super-2 number, since 2×230314692 = 1060897128595922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515734 + 11515735.

It is an arithmetic number, because the mean of its divisors is an integer number (11515735).

Almost surely, 223031469 is an apocalyptic number.

It is an amenable number.

23031469 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031469 is an equidigital number, since it uses as much as digits as its factorization.

23031469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23031469 is about 4799.1112718919. Note that the first 3 decimals coincide. The cubic root of 23031469 is about 284.5163398191.

The spelling of 23031469 in words is "twenty-three million, thirty-one thousand, four hundred sixty-nine".