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23090967 = 33855221
BaseRepresentation
bin101100000010…
…1011100010111
31121110010212000
41120011130113
521402402332
62142530343
7400161414
oct130053427
947403760
1023090967
1112041649
1278969b3
134a262c3
1430d110b
152061b7c
hex1605717

23090967 has 8 divisors (see below), whose sum is σ = 34208880. Its totient is φ = 15393960.

The previous prime is 23090941. The next prime is 23090971. The reversal of 23090967 is 76909032.

It is not a de Polignac number, because 23090967 - 224 = 6313751 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23090917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427584 + ... + 427637.

It is an arithmetic number, because the mean of its divisors is an integer number (4276110).

Almost surely, 223090967 is an apocalyptic number.

23090967 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23090967 is a deficient number, since it is larger than the sum of its proper divisors (11117913).

23090967 is an equidigital number, since it uses as much as digits as its factorization.

23090967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855230 (or 855224 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 23090967 is about 4805.3061296862. The cubic root of 23090967 is about 284.7611294884.

Adding to 23090967 its reverse (76909032), we get a palindrome (99999999).

The spelling of 23090967 in words is "twenty-three million, ninety thousand, nine hundred sixty-seven".

Divisors: 1 3 9 27 855221 2565663 7696989 23090967