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23530841 = 30017841
BaseRepresentation
bin101100111000…
…0110101011001
31122021111020122
41121300311121
522010441331
62200203025
7404003015
oct131606531
948244218
1023530841
1112312084
127a69475
134b4b599
1431a7545
1520ec17b
hex1670d59

23530841 has 4 divisors (see below), whose sum is σ = 23541684. Its totient is φ = 23520000.

The previous prime is 23530813. The next prime is 23530849. The reversal of 23530841 is 14803532.

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 10426441 + 13104400 = 3229^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 23530841 - 26 = 23530777 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 23530841.

It is not an unprimeable number, because it can be changed into a prime (23530849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (5885421).

Almost surely, 223530841 is an apocalyptic number.

It is an amenable number.

23530841 is a deficient number, since it is larger than the sum of its proper divisors (10843).

23530841 is an equidigital number, since it uses as much as digits as its factorization.

23530841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 23530841 is about 4850.8598206916. The cubic root of 23530841 is about 286.5579641641.

The spelling of 23530841 in words is "twenty-three million, five hundred thirty thousand, eight hundred forty-one".

Divisors: 1 3001 7841 23530841