Base | Representation |
---|---|
bin | 10010100110011… |
… | …000101011000100 |
3 | 210202011220110001 |
4 | 102212120223010 |
5 | 1114341134140 |
6 | 50544211044 |
7 | 10506254551 |
oct | 2246305304 |
9 | 722156401 |
10 | 312052420 |
11 | 150166669 |
12 | 88609a84 |
13 | 4c85a904 |
14 | 2d62da28 |
15 | 1c5dee9a |
hex | 12998ac4 |
312052420 has 12 divisors (see below), whose sum is σ = 655310124. Its totient is φ = 124820960.
The previous prime is 312052399. The next prime is 312052427. The reversal of 312052420 is 24250213.
It can be written as a sum of positive squares in 2 ways, for example, as 248945284 + 63107136 = 15778^2 + 7944^2 .
It is not an unprimeable number, because it can be changed into a prime (312052427) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7801291 + ... + 7801330.
It is an arithmetic number, because the mean of its divisors is an integer number (54609177).
Almost surely, 2312052420 is an apocalyptic number.
It is an amenable number.
312052420 is an abundant number, since it is smaller than the sum of its proper divisors (343257704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312052420 is a wasteful number, since it uses less digits than its factorization.
312052420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15602630 (or 15602628 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 19.
The square root of 312052420 is about 17665.0055193878. The cubic root of 312052420 is about 678.2802709424.
It can be divided in two parts, 31205 and 2420, that multiplied together give a square (75516100 = 86902).
The spelling of 312052420 in words is "three hundred twelve million, fifty-two thousand, four hundred twenty".
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