Base | Representation |
---|---|
bin | 100111111110100110101 |
3 | 2110112222201 |
4 | 10333310311 |
5 | 313410010 |
6 | 44024501 |
7 | 14064154 |
oct | 4776465 |
9 | 2415881 |
10 | 1310005 |
11 | 815254 |
12 | 532131 |
13 | 36b368 |
14 | 26159b |
15 | 1ad23a |
hex | 13fd35 |
1310005 has 8 divisors (see below), whose sum is σ = 1585152. Its totient is φ = 1039248.
The previous prime is 1309999. The next prime is 1310033. The reversal of 1310005 is 5000131.
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 1310005 - 27 = 1309877 is a prime.
It is a super-2 number, since 2×13100052 = 3432226200050, which contains 22 as substring.
It is a Duffinian number.
1310005 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 1309973 and 1310000.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397 + ... + 1666.
It is an arithmetic number, because the mean of its divisors is an integer number (198144).
21310005 is an apocalyptic number.
It is an amenable number.
1310005 is a deficient number, since it is larger than the sum of its proper divisors (275147).
1310005 is a wasteful number, since it uses less digits than its factorization.
1310005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2195.
The product of its (nonzero) digits is 15, while the sum is 10.
The square root of 1310005 is about 1144.5544984840. The cubic root of 1310005 is about 109.4185573454.
Adding to 1310005 its reverse (5000131), we get a palindrome (6310136).
The spelling of 1310005 in words is "one million, three hundred ten thousand, five".
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