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23891693 = 73413099
BaseRepresentation
bin101101100100…
…0111011101101
31122221211020112
41123020323231
522104013233
62212025405
7410035040
oct133107355
948854215
1023891693
1112539201
128002265
134c468c7
14325cc57
15216e048
hex16c8eed

23891693 has 4 divisors (see below), whose sum is σ = 27304800. Its totient is φ = 20478588.

The previous prime is 23891689. The next prime is 23891701. The reversal of 23891693 is 39619832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23891693 - 22 = 23891689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23891693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23897693) 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, 1706543 + ... + 1706556.

It is an arithmetic number, because the mean of its divisors is an integer number (6826200).

Almost surely, 223891693 is an apocalyptic number.

It is an amenable number.

23891693 is a deficient number, since it is larger than the sum of its proper divisors (3413107).

23891693 is an equidigital number, since it uses as much as digits as its factorization.

23891693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413106.

The product of its digits is 69984, while the sum is 41.

The square root of 23891693 is about 4887.9129493067. The cubic root of 23891693 is about 288.0153549234.

The spelling of 23891693 in words is "twenty-three million, eight hundred ninety-one thousand, six hundred ninety-three".

Divisors: 1 7 3413099 23891693