Base | Representation |
---|---|
bin | 100100010100100… |
… | …0001100110111101 |
3 | 10010221020002101020 |
4 | 1020221001212331 |
5 | 4443442322140 |
6 | 320533134353 |
7 | 42125620113 |
oct | 11051014675 |
9 | 3127202336 |
10 | 1218714045 |
11 | 575a2899a |
12 | 2a018a3b9 |
13 | 165647493 |
14 | b7c01ab3 |
15 | 71ed56d0 |
hex | 48a419bd |
1218714045 has 16 divisors (see below), whose sum is σ = 1951324800. Its totient is φ = 649520064.
The previous prime is 1218714023. The next prime is 1218714073. The reversal of 1218714045 is 5404178121.
It is not a de Polignac number, because 1218714045 - 221 = 1216616893 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1218713997 and 1218714015.
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, 6370 + ... + 49779.
It is an arithmetic number, because the mean of its divisors is an integer number (121957800).
Almost surely, 21218714045 is an apocalyptic number.
1218714045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1218714045 is a deficient number, since it is larger than the sum of its proper divisors (732610755).
1218714045 is a wasteful number, since it uses less digits than its factorization.
1218714045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57604.
The product of its (nonzero) digits is 8960, while the sum is 33.
The square root of 1218714045 is about 34910.0851474184. The cubic root of 1218714045 is about 1068.1541661541.
The spelling of 1218714045 in words is "one billion, two hundred eighteen million, seven hundred fourteen thousand, forty-five".
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