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24130661 = 73330557
BaseRepresentation
bin101110000001…
…1010001100101
31200101222001012
41130003101211
522134140121
62221112005
7412051532
oct134032145
950358035
1024130661
11126917a5
1280b8605
134ccb5c9
1432c1d89
1521b9c5b
hex1703465

24130661 has 4 divisors (see below), whose sum is σ = 24461292. Its totient is φ = 23800032.

The previous prime is 24130651. The next prime is 24130663. The reversal of 24130661 is 16603142.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16603142 = 28301571.

It can be written as a sum of positive squares in 2 ways, for example, as 17850625 + 6280036 = 4225^2 + 2506^2 .

It is a cyclic number.

It is not a de Polignac number, because 24130661 - 218 = 23868517 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 (24130663) 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, 165206 + ... + 165351.

It is an arithmetic number, because the mean of its divisors is an integer number (6115323).

Almost surely, 224130661 is an apocalyptic number.

It is an amenable number.

24130661 is a deficient number, since it is larger than the sum of its proper divisors (330631).

24130661 is an equidigital number, since it uses as much as digits as its factorization.

24130661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330630.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 24130661 is about 4912.2969169219. The cubic root of 24130661 is about 288.9724274569.

The spelling of 24130661 in words is "twenty-four million, one hundred thirty thousand, six hundred sixty-one".

Divisors: 1 73 330557 24130661