Base | Representation |
---|---|
bin | 10010011110111… |
… | …110111101111001 |
3 | 210121112022212010 |
4 | 102132332331321 |
5 | 1113342041441 |
6 | 50434440133 |
7 | 10453623654 |
oct | 2236767571 |
9 | 717468763 |
10 | 310112121 |
11 | 14a060910 |
12 | 87a33049 |
13 | 4c32b6c7 |
14 | 2d28689b |
15 | 1c35a116 |
hex | 127bef79 |
310112121 has 8 divisors (see below), whose sum is σ = 451072224. Its totient is φ = 187946720.
The previous prime is 310112119. The next prime is 310112123. The reversal of 310112121 is 121211013.
It is an interprime number because it is at equal distance from previous prime (310112119) and next prime (310112123).
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 310112121 - 21 = 310112119 is a prime.
It is a super-2 number, since 2×3101121212 = 192339055182237282, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 310112097 and 310112106.
It is not an unprimeable number, because it can be changed into a prime (310112123) 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, 4698636 + ... + 4698701.
It is an arithmetic number, because the mean of its divisors is an integer number (56384028).
Almost surely, 2310112121 is an apocalyptic number.
It is an amenable number.
310112121 is a deficient number, since it is larger than the sum of its proper divisors (140960103).
310112121 is a wasteful number, since it uses less digits than its factorization.
310112121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9397351.
The product of its (nonzero) digits is 12, while the sum is 12.
The square root of 310112121 is about 17610.0005962521. Note that the first 3 decimals coincide. The cubic root of 310112121 is about 676.8715293170.
Adding to 310112121 its reverse (121211013), we get a palindrome (431323134).
The spelling of 310112121 in words is "three hundred ten million, one hundred twelve thousand, one hundred twenty-one".
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