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24120121 = 193112491
BaseRepresentation
bin101110000000…
…0101100111001
31200101102120211
41130000230321
522133320441
62220551121
7412006024
oct134005471
950342524
1024120121
1112684893
1280b24a1
134cc687c
1432bc1bb
1521b6a81
hex1700b39

24120121 has 4 divisors (see below), whose sum is σ = 24134544. Its totient is φ = 24105700.

The previous prime is 24120097. The next prime is 24120143. The reversal of 24120121 is 12102142.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 24120121 - 213 = 24111929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24120521) 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, 4315 + ... + 8176.

It is an arithmetic number, because the mean of its divisors is an integer number (6033636).

Almost surely, 224120121 is an apocalyptic number.

It is an amenable number.

24120121 is a deficient number, since it is larger than the sum of its proper divisors (14423).

24120121 is a wasteful number, since it uses less digits than its factorization.

24120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14422.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 24120121 is about 4911.2239818603. The cubic root of 24120121 is about 288.9303480329.

Adding to 24120121 its reverse (12102142), we get a palindrome (36222263).

The spelling of 24120121 in words is "twenty-four million, one hundred twenty thousand, one hundred twenty-one".

Divisors: 1 1931 12491 24120121