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23990341 = 149161009
BaseRepresentation
bin101101110000…
…1000001000101
31200010211120011
41123201001011
522120142331
62214110221
7410625454
oct133410105
950124504
1023990341
11125a6331
12804b371
134c7c78b
143286b9b
15218d3b1
hex16e1045

23990341 has 4 divisors (see below), whose sum is σ = 24151500. Its totient is φ = 23829184.

The previous prime is 23990333. The next prime is 23990353. The reversal of 23990341 is 14309932.

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 1094116 + 22896225 = 1046^2 + 4785^2 .

It is a cyclic number.

It is not a de Polignac number, because 23990341 - 23 = 23990333 is a prime.

It is a super-2 number, since 2×239903412 = 1151072922592562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23900341) 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, 80356 + ... + 80653.

It is an arithmetic number, because the mean of its divisors is an integer number (6037875).

Almost surely, 223990341 is an apocalyptic number.

It is an amenable number.

23990341 is a deficient number, since it is larger than the sum of its proper divisors (161159).

23990341 is a wasteful number, since it uses less digits than its factorization.

23990341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161158.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23990341 is about 4897.9935687994. The cubic root of 23990341 is about 288.4112125119.

The spelling of 23990341 in words is "twenty-three million, nine hundred ninety thousand, three hundred forty-one".

Divisors: 1 149 161009 23990341