Base | Representation |
---|---|
bin | 10010100110111… |
… | …100110100100000 |
3 | 210202110102112202 |
4 | 102212330310200 |
5 | 1114410403410 |
6 | 50551312332 |
7 | 10510442324 |
oct | 2246746440 |
9 | 722412482 |
10 | 312200480 |
11 | 150257929 |
12 | 8867b6a8 |
13 | 4c8b0117 |
14 | 2d66b984 |
15 | 1c61dca5 |
hex | 129bcd20 |
312200480 has 24 divisors (see below), whose sum is σ = 737574012. Its totient is φ = 124880128.
The previous prime is 312200479. The next prime is 312200489. The reversal of 312200480 is 84002213.
It can be written as a sum of positive squares in 2 ways, for example, as 304293136 + 7907344 = 17444^2 + 2812^2 .
It is a Harshad number since it is a multiple of its sum of digits (20).
It is not an unprimeable number, because it can be changed into a prime (312200489) 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 3 ways as a sum of consecutive naturals, for example, 975467 + ... + 975786.
Almost surely, 2312200480 is an apocalyptic number.
It is an amenable number.
312200480 is an abundant number, since it is smaller than the sum of its proper divisors (425373532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312200480 is a wasteful number, since it uses less digits than its factorization.
312200480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1951268 (or 1951260 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 312200480 is about 17669.1957938102. The cubic root of 312200480 is about 678.3875288810.
Adding to 312200480 its reverse (84002213), we get a palindrome (396202693).
The spelling of 312200480 in words is "three hundred twelve million, two hundred thousand, four hundred eighty".
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