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23481061 = 113207797
BaseRepresentation
bin101100110010…
…0101011100101
31122011221221221
41121210223211
522002343221
62155140341
7403404622
oct131445345
948157857
1023481061
111228873a
127a446b1
134b31a26
143193349
1520dc541
hex1664ae5

23481061 has 4 divisors (see below), whose sum is σ = 23688972. Its totient is φ = 23273152.

The previous prime is 23481047. The next prime is 23481071. The reversal of 23481061 is 16018432.

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 11189025 + 12292036 = 3345^2 + 3506^2 .

It is a cyclic number.

It is not a de Polignac number, because 23481061 - 29 = 23480549 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 (23481001) 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, 103786 + ... + 104011.

It is an arithmetic number, because the mean of its divisors is an integer number (5922243).

Almost surely, 223481061 is an apocalyptic number.

It is an amenable number.

23481061 is a deficient number, since it is larger than the sum of its proper divisors (207911).

23481061 is a wasteful number, since it uses less digits than its factorization.

23481061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207910.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 23481061 is about 4845.7260549891. The cubic root of 23481061 is about 286.3557483218.

Adding to 23481061 its reverse (16018432), we get a palindrome (39499493).

The spelling of 23481061 in words is "twenty-three million, four hundred eighty-one thousand, sixty-one".

Divisors: 1 113 207797 23481061