Base | Representation |
---|---|
bin | 100000001110011… |
… | …1001110000000111 |
3 | 2210100200122222220 |
4 | 1000130321300013 |
5 | 4203304142112 |
6 | 255144223423 |
7 | 35540024541 |
oct | 10034716007 |
9 | 2710618886 |
10 | 1081318407 |
11 | 505415584 |
12 | 26216ab73 |
13 | 14303c6a0 |
14 | a3878691 |
15 | 64de598c |
hex | 40739c07 |
1081318407 has 8 divisors (see below), whose sum is σ = 1552662384. Its totient is φ = 665426688.
The previous prime is 1081318397. The next prime is 1081318453. The reversal of 1081318407 is 7048131801.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1081318407 - 27 = 1081318279 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1081318207) 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, 13863018 + ... + 13863095.
It is an arithmetic number, because the mean of its divisors is an integer number (194082798).
Almost surely, 21081318407 is an apocalyptic number.
1081318407 is a deficient number, since it is larger than the sum of its proper divisors (471343977).
1081318407 is a wasteful number, since it uses less digits than its factorization.
1081318407 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27726129.
The product of its (nonzero) digits is 5376, while the sum is 33.
The square root of 1081318407 is about 32883.4062560435. The cubic root of 1081318407 is about 1026.4028879154.
The spelling of 1081318407 in words is "one billion, eighty-one million, three hundred eighteen thousand, four hundred seven".
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