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23381141 = 73340163
BaseRepresentation
bin101100100110…
…0010010010101
31121222212220012
41121030102111
521441144031
62153050005
7402510410
oct131142225
947885805
1023381141
111221a663
1279b6905
134ac83c4
143168b77
1520bcb2b
hex164c495

23381141 has 4 divisors (see below), whose sum is σ = 26721312. Its totient is φ = 20040972.

The previous prime is 23381119. The next prime is 23381147. The reversal of 23381141 is 14118332.

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 not a de Polignac number, because 23381141 - 222 = 19186837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23381147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670075 + ... + 1670088.

It is an arithmetic number, because the mean of its divisors is an integer number (6680328).

Almost surely, 223381141 is an apocalyptic number.

It is an amenable number.

23381141 is a deficient number, since it is larger than the sum of its proper divisors (3340171).

23381141 is an equidigital number, since it uses as much as digits as its factorization.

23381141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340170.

The product of its digits is 576, while the sum is 23.

The square root of 23381141 is about 4835.4049468478. The cubic root of 23381141 is about 285.9489900386.

Adding to 23381141 its reverse (14118332), we get a palindrome (37499473).

The spelling of 23381141 in words is "twenty-three million, three hundred eighty-one thousand, one hundred forty-one".

Divisors: 1 7 3340163 23381141