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23950081 = 65336677
BaseRepresentation
bin101101101011…
…1001100000001
31200001210100001
41123113030001
522112400311
62213200001
7410400211
oct133271401
950053301
1023950081
1112579061
128030001
134c6735c
143276241
1521814c1
hex16d7301

23950081 has 4 divisors (see below), whose sum is σ = 23987412. Its totient is φ = 23912752.

The previous prime is 23950067. The next prime is 23950103. The reversal of 23950081 is 18005932.

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 16160400 + 7789681 = 4020^2 + 2791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23950081 is a prime.

It is a super-2 number, since 2×239500812 = 1147212759813122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23950001) 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, 17686 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (5996853).

Almost surely, 223950081 is an apocalyptic number.

It is an amenable number.

23950081 is a deficient number, since it is larger than the sum of its proper divisors (37331).

23950081 is an equidigital number, since it uses as much as digits as its factorization.

23950081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37330.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 23950081 is about 4893.8819969427. The cubic root of 23950081 is about 288.2497873113.

The spelling of 23950081 in words is "twenty-three million, nine hundred fifty thousand, eighty-one".

Divisors: 1 653 36677 23950081