Base | Representation |
---|---|
bin | 100101000100111… |
… | …1001111001011111 |
3 | 10012201000100200010 |
4 | 1022021321321133 |
5 | 10021443013211 |
6 | 323241334303 |
7 | 42554523054 |
oct | 11211717137 |
9 | 3181010603 |
10 | 1244110431 |
11 | 5892a4643 |
12 | 2a8797393 |
13 | 16a999c25 |
14 | bb33302b |
15 | 743504a6 |
hex | 4a279e5f |
1244110431 has 4 divisors (see below), whose sum is σ = 1658813912. Its totient is φ = 829406952.
The previous prime is 1244110429. The next prime is 1244110447. The reversal of 1244110431 is 1340114421.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 1244110431 - 21 = 1244110429 is a prime.
It is a super-2 number, since 2×12441104312 = 3095621529046011522, 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 = 1244110398 and 1244110407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1244110331) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207351736 + ... + 207351741.
It is an arithmetic number, because the mean of its divisors is an integer number (414703478).
Almost surely, 21244110431 is an apocalyptic number.
1244110431 is a deficient number, since it is larger than the sum of its proper divisors (414703481).
1244110431 is an equidigital number, since it uses as much as digits as its factorization.
1244110431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414703480.
The product of its (nonzero) digits is 384, while the sum is 21.
The square root of 1244110431 is about 35271.9496342349. The cubic root of 1244110431 is about 1075.5228553709.
Adding to 1244110431 its reverse (1340114421), we get a palindrome (2584224852).
The spelling of 1244110431 in words is "one billion, two hundred forty-four million, one hundred ten thousand, four hundred thirty-one".
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