Base | Representation |
---|---|
bin | 10010100110010… |
… | …000110111000111 |
3 | 210202010021112222 |
4 | 102212100313013 |
5 | 1114334123143 |
6 | 50543402555 |
7 | 10506062351 |
oct | 2246206707 |
9 | 722107488 |
10 | 312020423 |
11 | 150144620 |
12 | 885b345b |
13 | 4c849190 |
14 | 2d6220d1 |
15 | 1c5d5768 |
hex | 12990dc7 |
312020423 has 16 divisors (see below), whose sum is σ = 367235232. Its totient is φ = 261360000.
The previous prime is 312020399. The next prime is 312020441. The reversal of 312020423 is 324020213.
It is not a de Polignac number, because 312020423 - 210 = 312019399 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312020473) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92873 + ... + 96173.
It is an arithmetic number, because the mean of its divisors is an integer number (22952202).
Almost surely, 2312020423 is an apocalyptic number.
312020423 is a deficient number, since it is larger than the sum of its proper divisors (55214809).
312020423 is a wasteful number, since it uses less digits than its factorization.
312020423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3986.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 312020423 is about 17664.0998355421. The cubic root of 312020423 is about 678.2570871499.
Adding to 312020423 its reverse (324020213), we get a palindrome (636040636).
The spelling of 312020423 in words is "three hundred twelve million, twenty thousand, four hundred twenty-three".
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