Base | Representation |
---|---|
bin | 100100110001111… |
… | …0101100111100111 |
3 | 10012000020101001112 |
4 | 1021203311213213 |
5 | 10011414201211 |
6 | 322243415235 |
7 | 42403641551 |
oct | 11143654747 |
9 | 3160211045 |
10 | 1234131431 |
11 | 5836a9235 |
12 | 2a538451b |
13 | 1688b4ab0 |
14 | b9c964d1 |
15 | 7352d88b |
hex | 498f59e7 |
1234131431 has 8 divisors (see below), whose sum is σ = 1336492080. Its totient is φ = 1132831872.
The previous prime is 1234131413. The next prime is 1234131461. The reversal of 1234131431 is 1341314321.
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 1234131431 - 210 = 1234130407 is a prime.
It is a super-2 number, since 2×12341314312 = 3046160777964215522, 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 = 1234131397 and 1234131406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1234131461) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262850 + ... + 267503.
It is an arithmetic number, because the mean of its divisors is an integer number (167061510).
Almost surely, 21234131431 is an apocalyptic number.
1234131431 is a deficient number, since it is larger than the sum of its proper divisors (102360649).
1234131431 is a wasteful number, since it uses less digits than its factorization.
1234131431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 530545.
The product of its digits is 864, while the sum is 23.
The square root of 1234131431 is about 35130.2068169261. The cubic root of 1234131431 is about 1072.6395457803.
Adding to 1234131431 its reverse (1341314321), we get a palindrome (2575445752).
It can be divided in two parts, 1 and 234131431, that added together give a palindrome (234131432).
The spelling of 1234131431 in words is "one billion, two hundred thirty-four million, one hundred thirty-one thousand, four hundred thirty-one".
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