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23873081 is a prime number
BaseRepresentation
bin101101100010…
…0011000111001
31122220212201012
41123010120321
522102414311
62211403305
7406626551
oct133043071
948825635
1023873081
1112526221
127bb3535
134c3b2ab
143256161
15216878b
hex16c4639

23873081 has 2 divisors, whose sum is σ = 23873082. Its totient is φ = 23873080.

The previous prime is 23873023. The next prime is 23873099. The reversal of 23873081 is 18037832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12313081 + 11560000 = 3509^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 23873081 - 214 = 23856697 is a prime.

It is a super-2 number, since 2×238730812 = 1139847992865122, which contains 22 as substring.

It is equal to p1499621 and since 23873081 and 1499621 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (23873881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11936540 + 11936541.

It is an arithmetic number, because the mean of its divisors is an integer number (11936541).

Almost surely, 223873081 is an apocalyptic number.

It is an amenable number.

23873081 is a deficient number, since it is larger than the sum of its proper divisors (1).

23873081 is an equidigital number, since it uses as much as digits as its factorization.

23873081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 23873081 is about 4886.0086983140. The cubic root of 23873081 is about 287.9405460156.

The spelling of 23873081 in words is "twenty-three million, eight hundred seventy-three thousand, eighty-one".