Base | Representation |
---|---|
bin | 100100001001111… |
… | …0001000100000111 |
3 | 10010112201221221121 |
4 | 1020103301010013 |
5 | 4441031010010 |
6 | 320213454411 |
7 | 42030346654 |
oct | 11023610407 |
9 | 3115657847 |
10 | 1213141255 |
11 | 572871a87 |
12 | 29a341407 |
13 | 164445a81 |
14 | b7190c2b |
15 | 717843da |
hex | 484f1107 |
1213141255 has 8 divisors (see below), whose sum is σ = 1455959232. Its totient is φ = 970386528.
The previous prime is 1213141249. The next prime is 1213141261. The reversal of 1213141255 is 5521413121.
It is an interprime number because it is at equal distance from previous prime (1213141249) and next prime (1213141261).
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 1213141255 - 29 = 1213140743 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56257 + ... + 74773.
It is an arithmetic number, because the mean of its divisors is an integer number (181994904).
Almost surely, 21213141255 is an apocalyptic number.
1213141255 is a deficient number, since it is larger than the sum of its proper divisors (242817977).
1213141255 is a wasteful number, since it uses less digits than its factorization.
1213141255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31625.
The product of its digits is 1200, while the sum is 25.
The square root of 1213141255 is about 34830.1773610184. The cubic root of 1213141255 is about 1066.5235689656.
Adding to 1213141255 its reverse (5521413121), we get a palindrome (6734554376).
The spelling of 1213141255 in words is "one billion, two hundred thirteen million, one hundred forty-one thousand, two hundred fifty-five".
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