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24430130221 = 73490018603
BaseRepresentation
bin10110110000001001…
…100011010000101101
32100001120121012102211
4112300021203100231
5400013103131341
615120102250421
71523254452310
oct266011432055
970046535384
1024430130221
11a3a7198472
124899726a11
1323c4459c73
14127a804977
1597eb57181
hex5b026342d

24430130221 has 4 divisors (see below), whose sum is σ = 27920148832. Its totient is φ = 20940111612.

The previous prime is 24430130191. The next prime is 24430130239. The reversal of 24430130221 is 12203103442.

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 not a de Polignac number, because 24430130221 - 25 = 24430130189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24430130192 and 24430130201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24430170221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745009295 + ... + 1745009308.

It is an arithmetic number, because the mean of its divisors is an integer number (6980037208).

Almost surely, 224430130221 is an apocalyptic number.

It is an amenable number.

24430130221 is a deficient number, since it is larger than the sum of its proper divisors (3490018611).

24430130221 is an equidigital number, since it uses as much as digits as its factorization.

24430130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490018610.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 24430130221 its reverse (12203103442), we get a palindrome (36633233663).

The spelling of 24430130221 in words is "twenty-four billion, four hundred thirty million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 7 3490018603 24430130221