Base | Representation |
---|---|
bin | 1000101000000010… |
… | …0110001011111100 |
3 | 12222100212010110011 |
4 | 2022000212023330 |
5 | 14220221142340 |
6 | 1021431153004 |
7 | 111243451642 |
oct | 21200461374 |
9 | 5870763404 |
10 | 2315412220 |
11 | a88a98520 |
12 | 547515764 |
13 | 2ab910304 |
14 | 17d721192 |
15 | d84180ea |
hex | 8a0262fc |
2315412220 has 48 divisors (see below), whose sum is σ = 5308936416. Its totient is φ = 841248000.
The previous prime is 2315412191. The next prime is 2315412221. The reversal of 2315412220 is 222145132.
It is a happy number.
It is a super-2 number, since 2×23154122202 = 10722267497050656800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a junction number, because it is equal to n+sod(n) for n = 2315412191 and 2315412200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2315412221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300010 + ... + 307630.
It is an arithmetic number, because the mean of its divisors is an integer number (110602842).
Almost surely, 22315412220 is an apocalyptic number.
2315412220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2315412220 is an abundant number, since it is smaller than the sum of its proper divisors (2993524196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2315412220 is a wasteful number, since it uses less digits than its factorization.
2315412220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9022 (or 9020 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 2315412220 is about 48118.7304487556. The cubic root of 2315412220 is about 1322.9479987796.
Adding to 2315412220 its reverse (222145132), we get a palindrome (2537557352).
The spelling of 2315412220 in words is "two billion, three hundred fifteen million, four hundred twelve thousand, two hundred twenty".
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