Base | Representation |
---|---|
bin | 11001000011111000… |
… | …11110100110111111 |
3 | 1021201122211112121102 |
4 | 30201330132212333 |
5 | 210023311412111 |
6 | 10103022323315 |
7 | 654261355505 |
oct | 144174364677 |
9 | 37648745542 |
10 | 13454404031 |
11 | 5784729982 |
12 | 2735a2953b |
13 | 1365581123 |
14 | 918c52675 |
15 | 53b2b013b |
hex | 321f1e9bf |
13454404031 has 16 divisors (see below), whose sum is σ = 13952505600. Its totient is φ = 12965375808.
The previous prime is 13454403983. The next prime is 13454404057. The reversal of 13454404031 is 13040445431.
It is a happy number.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13454404031 is a prime.
It is a super-2 number, since 2×134544040312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13454403985 and 13454404003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13454704031) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860140 + ... + 1867358.
It is an arithmetic number, because the mean of its divisors is an integer number (872031600).
Almost surely, 213454404031 is an apocalyptic number.
13454404031 is a deficient number, since it is larger than the sum of its proper divisors (498101569).
13454404031 is an equidigital number, since it uses as much as digits as its factorization.
13454404031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7838.
The product of its (nonzero) digits is 11520, while the sum is 29.
Adding to 13454404031 its reverse (13040445431), we get a palindrome (26494849462).
The spelling of 13454404031 in words is "thirteen billion, four hundred fifty-four million, four hundred four thousand, thirty-one".
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