Base | Representation |
---|---|
bin | 10001000101101011… |
… | …011100110000001110 |
3 | 1202100202200001002102 |
4 | 101011223130300032 |
5 | 300034303341204 |
6 | 12232424155102 |
7 | 1216462652351 |
oct | 210553346016 |
9 | 52322601072 |
10 | 18348887054 |
11 | 7866517473 |
12 | 3681008a92 |
13 | 19655b7024 |
14 | c60cc8298 |
15 | 725d2241e |
hex | 445adcc0e |
18348887054 has 32 divisors (see below), whose sum is σ = 28926720000. Its totient is φ = 8712620224.
The previous prime is 18348887009. The next prime is 18348887069. The reversal of 18348887054 is 45078884381.
It is a super-2 number, since 2×183488870542 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3944522 + ... + 3949170.
It is an arithmetic number, because the mean of its divisors is an integer number (903960000).
Almost surely, 218348887054 is an apocalyptic number.
18348887054 is a deficient number, since it is larger than the sum of its proper divisors (10577832946).
18348887054 is a wasteful number, since it uses less digits than its factorization.
18348887054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5272.
The product of its (nonzero) digits is 6881280, while the sum is 56.
It can be divided in two parts, 1834 and 8887054, that added together give a palindrome (8888888).
The spelling of 18348887054 in words is "eighteen billion, three hundred forty-eight million, eight hundred eighty-seven thousand, fifty-four".
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