Base | Representation |
---|---|
bin | 100111010010010… |
… | …0100101000010101 |
3 | 10101212110000021011 |
4 | 1032210210220111 |
5 | 10144430210234 |
6 | 334445452221 |
7 | 44444413021 |
oct | 11644445025 |
9 | 3355400234 |
10 | 1318210069 |
11 | 617105810 |
12 | 309571071 |
13 | 180142777 |
14 | c7101381 |
15 | 7aadab64 |
hex | 4e924a15 |
1318210069 has 8 divisors (see below), whose sum is σ = 1458302400. Its totient is φ = 1181493600.
The previous prime is 1318210057. The next prime is 1318210087. The reversal of 1318210069 is 9600128131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1318210069 - 27 = 1318209941 is a prime.
It is a super-2 number, since 2×13182100692 = 3475355572025969522, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1318210069.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1318210009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843144 + ... + 844705.
It is an arithmetic number, because the mean of its divisors is an integer number (182287800).
Almost surely, 21318210069 is an apocalyptic number.
It is an amenable number.
1318210069 is a deficient number, since it is larger than the sum of its proper divisors (140092331).
1318210069 is a wasteful number, since it uses less digits than its factorization.
1318210069 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1687931.
The product of its (nonzero) digits is 2592, while the sum is 31.
The square root of 1318210069 is about 36307.1627781627. The cubic root of 1318210069 is about 1096.4652566417.
The spelling of 1318210069 in words is "one billion, three hundred eighteen million, two hundred ten thousand, sixty-nine".
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