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23101217 is a prime number
BaseRepresentation
bin101100000011…
…1111100100001
31121110122220122
41120013330201
521403214332
62143050025
7400233326
oct130077441
947418818
1023101217
1112049317
1278a0915
134a2ab79
1430d4b4d
152064c12
hex1607f21

23101217 has 2 divisors, whose sum is σ = 23101218. Its totient is φ = 23101216.

The previous prime is 23101213. The next prime is 23101219. The reversal of 23101217 is 71210132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23078416 + 22801 = 4804^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 23101217 - 22 = 23101213 is a prime.

Together with 23101219, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p1454210 and since 23101217 and 1454210 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 23101195 and 23101204.

It is not a weakly prime, because it can be changed into another prime (23101213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550608 + 11550609.

It is an arithmetic number, because the mean of its divisors is an integer number (11550609).

Almost surely, 223101217 is an apocalyptic number.

It is an amenable number.

23101217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23101217 is an equidigital number, since it uses as much as digits as its factorization.

23101217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 23101217 is about 4806.3725407005. The cubic root of 23101217 is about 284.8032580807.

Adding to 23101217 its reverse (71210132), we get a palindrome (94311349).

The spelling of 23101217 in words is "twenty-three million, one hundred one thousand, two hundred seventeen".