Base | Representation |
---|---|
bin | 10100111010110111… |
… | …11100111000010101 |
3 | 1001222201122101021112 |
4 | 22131123330320111 |
5 | 141000202103012 |
6 | 5054245224405 |
7 | 545215226300 |
oct | 123533747025 |
9 | 31881571245 |
10 | 11231284757 |
11 | 4843849520 |
12 | 2215402105 |
13 | 109cb16634 |
14 | 7878b7b37 |
15 | 45b028122 |
hex | 29d6fce15 |
11231284757 has 24 divisors (see below), whose sum is σ = 14331556512. Its totient is φ = 8703223200.
The previous prime is 11231284711. The next prime is 11231284817. The reversal of 11231284757 is 75748213211.
It is not a de Polignac number, because 11231284757 - 28 = 11231284501 is a prime.
It is a super-2 number, since 2×112312847572 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11231284457) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39998 + ... + 155120.
It is an arithmetic number, because the mean of its divisors is an integer number (597148188).
Almost surely, 211231284757 is an apocalyptic number.
It is an amenable number.
11231284757 is a deficient number, since it is larger than the sum of its proper divisors (3100271755).
11231284757 is a wasteful number, since it uses less digits than its factorization.
11231284757 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115329 (or 115322 counting only the distinct ones).
The product of its digits is 94080, while the sum is 41.
Adding to 11231284757 its reverse (75748213211), we get a palindrome (86979497968).
The spelling of 11231284757 in words is "eleven billion, two hundred thirty-one million, two hundred eighty-four thousand, seven hundred fifty-seven".
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