Base | Representation |
---|---|
bin | 10010100010010… |
… | …010111000010001 |
3 | 210200011102111222 |
4 | 102202102320101 |
5 | 1114102330423 |
6 | 50505214425 |
7 | 10464200363 |
oct | 2242227021 |
9 | 720142458 |
10 | 310980113 |
11 | 14a5a3a64 |
12 | 88191415 |
13 | 4c573802 |
14 | 2d430d33 |
15 | 1c47c3c8 |
hex | 12892e11 |
310980113 has 4 divisors (see below), whose sum is σ = 313217520. Its totient is φ = 308742708.
The previous prime is 310980107. The next prime is 310980139. The reversal of 310980113 is 311089013.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311089013 = 1429 ⋅217697.
It is a cyclic number.
It is not a de Polignac number, because 310980113 - 218 = 310717969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (310980143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118495 + ... + 1118772.
It is an arithmetic number, because the mean of its divisors is an integer number (78304380).
Almost surely, 2310980113 is an apocalyptic number.
It is an amenable number.
310980113 is a deficient number, since it is larger than the sum of its proper divisors (2237407).
310980113 is a wasteful number, since it uses less digits than its factorization.
310980113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2237406.
The product of its (nonzero) digits is 648, while the sum is 26.
The square root of 310980113 is about 17634.6282353783. The cubic root of 310980113 is about 677.5024535706.
Subtracting 310980113 from its reverse (311089013), we obtain a square (108900 = 3302).
The spelling of 310980113 in words is "three hundred ten million, nine hundred eighty thousand, one hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •