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24412021 = 163149767
BaseRepresentation
bin101110100011…
…1111101110101
31200221020222221
41131013331311
522222141041
62231122341
7414333034
oct135077565
950836887
1024412021
1112864127
1282133b1
1350996aa
14335671b
1522232d1
hex1747f75

24412021 has 4 divisors (see below), whose sum is σ = 24561952. Its totient is φ = 24262092.

The previous prime is 24411977. The next prime is 24412049. The reversal of 24412021 is 12021442.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12021442 = 26010721.

It is a cyclic number.

It is not a de Polignac number, because 24412021 - 29 = 24411509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24411986 and 24412004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24412061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74721 + ... + 75046.

It is an arithmetic number, because the mean of its divisors is an integer number (6140488).

Almost surely, 224412021 is an apocalyptic number.

It is an amenable number.

24412021 is a deficient number, since it is larger than the sum of its proper divisors (149931).

24412021 is a wasteful number, since it uses less digits than its factorization.

24412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149930.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 24412021 is about 4940.8522544193. The cubic root of 24412021 is about 290.0912158563.

Adding to 24412021 its reverse (12021442), we get a palindrome (36433463).

The spelling of 24412021 in words is "twenty-four million, four hundred twelve thousand, twenty-one".

Divisors: 1 163 149767 24412021