Base | Representation |
---|---|
bin | 101001110000100… |
… | …1111011101100101 |
3 | 10121122122111121122 |
4 | 1103201033131211 |
5 | 10332203114023 |
6 | 351013023325 |
7 | 46503125201 |
oct | 12341173545 |
9 | 3548574548 |
10 | 1401223013 |
11 | 659a54653 |
12 | 331324b45 |
13 | 1943b9358 |
14 | d414db01 |
15 | 830372c8 |
hex | 5384f765 |
1401223013 has 8 divisors (see below), whose sum is σ = 1417683960. Its totient is φ = 1384827840.
The previous prime is 1401223007. The next prime is 1401223027. The reversal of 1401223013 is 3103221041.
It can be written as a sum of positive squares in 4 ways, for example, as 498941569 + 902281444 = 22337^2 + 30038^2 .
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 1401223013 - 210 = 1401221989 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 1401222982 and 1401223000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1401223003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27083 + ... + 59463.
It is an arithmetic number, because the mean of its divisors is an integer number (177210495).
Almost surely, 21401223013 is an apocalyptic number.
It is an amenable number.
1401223013 is a deficient number, since it is larger than the sum of its proper divisors (16460947).
1401223013 is a wasteful number, since it uses less digits than its factorization.
1401223013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32887.
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 1401223013 is about 37432.9134986846. The cubic root of 1401223013 is about 1119.0146022980.
Adding to 1401223013 its reverse (3103221041), we get a palindrome (4504444054).
The spelling of 1401223013 in words is "one billion, four hundred one million, two hundred twenty-three thousand, thirteen".
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