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23506361 = 23579973
BaseRepresentation
bin101100110101…
…0110110111001
31122020020122222
41121222312321
522004200421
62155453425
7403541444
oct131526671
948206588
1023506361
11122a574a
127a57275
134b403b8
14319c65b
1520e4cab
hex166adb9

23506361 has 4 divisors (see below), whose sum is σ = 23518692. Its totient is φ = 23494032.

The previous prime is 23506333. The next prime is 23506369. The reversal of 23506361 is 16360532.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3534400 + 19971961 = 1880^2 + 4469^2 .

It is a cyclic number.

It is not a de Polignac number, because 23506361 - 26 = 23506297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23506361.

It is not an unprimeable number, because it can be changed into a prime (23506369) 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, 2630 + ... + 7343.

It is an arithmetic number, because the mean of its divisors is an integer number (5879673).

Almost surely, 223506361 is an apocalyptic number.

It is an amenable number.

23506361 is a deficient number, since it is larger than the sum of its proper divisors (12331).

23506361 is an equidigital number, since it uses as much as digits as its factorization.

23506361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12330.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23506361 is about 4848.3359000795. The cubic root of 23506361 is about 286.4585574181.

Adding to 23506361 its reverse (16360532), we get a palindrome (39866893).

The spelling of 23506361 in words is "twenty-three million, five hundred six thousand, three hundred sixty-one".

Divisors: 1 2357 9973 23506361