Base | Representation |
---|---|
bin | 10010100111000… |
… | …010000100110000 |
3 | 210202111112001210 |
4 | 102213002010300 |
5 | 1114412101000 |
6 | 50552000120 |
7 | 10510562136 |
oct | 2247020460 |
9 | 722445053 |
10 | 312222000 |
11 | 150272012 |
12 | 88690040 |
13 | 4c8b9b5c |
14 | 2d675756 |
15 | 1c625350 |
hex | 129c2130 |
312222000 has 160 divisors (see below), whose sum is σ = 1066163904. Its totient is φ = 78336000.
The previous prime is 312221999. The next prime is 312222019. The reversal of 312222000 is 222213.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100470 + ... + 103530.
Almost surely, 2312222000 is an apocalyptic number.
312222000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 312222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533081952).
312222000 is an abundant number, since it is smaller than the sum of its proper divisors (753941904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312222000 is a wasteful number, since it uses less digits than its factorization.
312222000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3104 (or 3088 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 312222000 is about 17669.8047527413. The cubic root of 312222000 is about 678.4031156222.
Adding to 312222000 its reverse (222213), we get a palindrome (312444213).
The spelling of 312222000 in words is "three hundred twelve million, two hundred twenty-two thousand".
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