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23136601 = 82128181
BaseRepresentation
bin101100001000…
…0100101011001
31121112110110011
41120100211121
521410332401
62143521521
7400441435
oct130204531
947473404
1023136601
1112072964
1278b92a1
134a40cc7
1431039c5
152070451
hex1610959

23136601 has 4 divisors (see below), whose sum is σ = 23165604. Its totient is φ = 23107600.

The previous prime is 23136599. The next prime is 23136611. The reversal of 23136601 is 10663132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14440000 + 8696601 = 3800^2 + 2949^2 .

It is a cyclic number.

It is not a de Polignac number, because 23136601 - 21 = 23136599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23136611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13270 + ... + 14911.

It is an arithmetic number, because the mean of its divisors is an integer number (5791401).

Almost surely, 223136601 is an apocalyptic number.

It is an amenable number.

23136601 is a deficient number, since it is larger than the sum of its proper divisors (29003).

23136601 is an equidigital number, since it uses as much as digits as its factorization.

23136601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29002.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23136601 is about 4810.0520787201. The cubic root of 23136601 is about 284.9485944014.

Adding to 23136601 its reverse (10663132), we get a palindrome (33799733).

The spelling of 23136601 in words is "twenty-three million, one hundred thirty-six thousand, six hundred one".

Divisors: 1 821 28181 23136601