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18624303241 = 39114762031
BaseRepresentation
bin10001010110000110…
…000101000010001001
31210001221220122001221
4101112012011002021
5301120310200431
612320023242041
71226345652115
oct212606050211
953057818057
1018624303241
117997a2a755
1237392a9321
1319aa68819b
14c896dc745
157400c7111
hex456185089

18624303241 has 4 divisors (see below), whose sum is σ = 18629069184. Its totient is φ = 18619537300.

The previous prime is 18624303221. The next prime is 18624303289. The reversal of 18624303241 is 14230342681.

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: 14230342681 = 1192912.

It is a cyclic number.

It is not a de Polignac number, because 18624303241 - 221 = 18622206089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18624303197 and 18624303206.

It is not an unprimeable number, because it can be changed into a prime (18624303211) 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, 2377105 + ... + 2384926.

It is an arithmetic number, because the mean of its divisors is an integer number (4657267296).

Almost surely, 218624303241 is an apocalyptic number.

It is an amenable number.

18624303241 is a deficient number, since it is larger than the sum of its proper divisors (4765943).

18624303241 is an equidigital number, since it uses as much as digits as its factorization.

18624303241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765942.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 18624303241 in words is "eighteen billion, six hundred twenty-four million, three hundred three thousand, two hundred forty-one".

Divisors: 1 3911 4762031 18624303241