Base | Representation |
---|---|
bin | 10010011111000… |
… | …001011110110101 |
3 | 210121112211222121 |
4 | 102133001132311 |
5 | 1113342404141 |
6 | 50434555541 |
7 | 10453666000 |
oct | 2237013665 |
9 | 717484877 |
10 | 310122421 |
11 | 14a068624 |
12 | 87a38bb1 |
13 | 4c3332bb |
14 | 2d28a537 |
15 | 1c35d1d1 |
hex | 127c17b5 |
310122421 has 8 divisors (see below), whose sum is σ = 361659200. Its totient is φ = 265818924.
The previous prime is 310122413. The next prime is 310122523. The reversal of 310122421 is 124221013.
It is not a de Polignac number, because 310122421 - 23 = 310122413 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 310122395 and 310122404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (310122221) 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, 451731 + ... + 452416.
It is an arithmetic number, because the mean of its divisors is an integer number (45207400).
Almost surely, 2310122421 is an apocalyptic number.
It is an amenable number.
310122421 is a deficient number, since it is larger than the sum of its proper divisors (51536779).
310122421 is an frugal number, since it uses more digits than its factorization.
310122421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 904168 (or 904154 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 310122421 is about 17610.2930412870. The cubic root of 310122421 is about 676.8790230578.
Adding to 310122421 its reverse (124221013), we get a palindrome (434343434).
It can be divided in two parts, 31012 and 2421, that added together give a palindrome (33433).
The spelling of 310122421 in words is "three hundred ten million, one hundred twenty-two thousand, four hundred twenty-one".
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