Base | Representation |
---|---|
bin | 111110010011100… |
… | …011011110010111 |
3 | 2200211221102110021 |
4 | 332103203132113 |
5 | 4120100012211 |
6 | 251420410011 |
7 | 34622006011 |
oct | 7623433627 |
9 | 2624842407 |
10 | 1045313431 |
11 | 4970634a8 |
12 | 2520a6907 |
13 | 138744376 |
14 | 9cb851b1 |
15 | 61b82771 |
hex | 3e4e3797 |
1045313431 has 8 divisors (see below), whose sum is σ = 1061489520. Its totient is φ = 1029154368.
The previous prime is 1045313413. The next prime is 1045313447. The reversal of 1045313431 is 1343135401.
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 1045313431 - 27 = 1045313303 is a prime.
It is a super-2 number, since 2×10453134312 = 2185360338057983522, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1045313396 and 1045313405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1045313411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179985 + ... + 185701.
It is an arithmetic number, because the mean of its divisors is an integer number (132686190).
Almost surely, 21045313431 is an apocalyptic number.
1045313431 is a deficient number, since it is larger than the sum of its proper divisors (16176089).
1045313431 is an equidigital number, since it uses as much as digits as its factorization.
1045313431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8513.
The product of its (nonzero) digits is 2160, while the sum is 25.
The square root of 1045313431 is about 32331.3072887565. The cubic root of 1045313431 is about 1014.8819072003.
Adding to 1045313431 its reverse (1343135401), we get a palindrome (2388448832).
The spelling of 1045313431 in words is "one billion, forty-five million, three hundred thirteen thousand, four hundred thirty-one".
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