Search a number
-
+
18124558453 = 53231120747
BaseRepresentation
bin10000111000010011…
…101101000001110101
31201210010112222002201
4100320103231001311
5244104341332303
612154252104501
71211100130201
oct207023550165
951703488081
1018124558453
117760928031
123619a65131
13192ac92301
14c3d1b1b01
157112ae81d
hex4384ed075

18124558453 has 12 divisors (see below), whose sum is σ = 18533275488. Its totient is φ = 17724552560.

The previous prime is 18124558427. The next prime is 18124558457. The reversal of 18124558453 is 35485542181.

It is not a de Polignac number, because 18124558453 - 217 = 18124427381 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 (18124558457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 863226 + ... + 883972.

It is an arithmetic number, because the mean of its divisors is an integer number (1544439624).

Almost surely, 218124558453 is an apocalyptic number.

It is an amenable number.

18124558453 is a deficient number, since it is larger than the sum of its proper divisors (408717035).

18124558453 is an equidigital number, since it uses as much as digits as its factorization.

18124558453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21164 (or 21111 counting only the distinct ones).

The product of its digits is 768000, while the sum is 46.

The spelling of 18124558453 in words is "eighteen billion, one hundred twenty-four million, five hundred fifty-eight thousand, four hundred fifty-three".

Divisors: 1 53 311 2809 16483 20747 873599 1099591 6452317 58278323 341972801 18124558453