Base | Representation |
---|---|
bin | 10010101010110… |
… | …100000100101110 |
3 | 210211100212210000 |
4 | 102222310010232 |
5 | 1120140310410 |
6 | 51025125130 |
7 | 10522161051 |
oct | 2252640456 |
9 | 724325700 |
10 | 313213230 |
11 | 150889810 |
12 | 88a897a6 |
13 | 4cb76095 |
14 | 2d852a98 |
15 | 1c76ddc0 |
hex | 12ab412e |
313213230 has 80 divisors (see below), whose sum is σ = 918784944. Its totient is φ = 75928320.
The previous prime is 313213207. The next prime is 313213231. The reversal of 313213230 is 32312313.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313213231) 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 39 ways as a sum of consecutive naturals, for example, 8667 + ... + 26486.
Almost surely, 2313213230 is an apocalyptic number.
313213230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
313213230 is an abundant number, since it is smaller than the sum of its proper divisors (605571714).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
313213230 is a wasteful number, since it uses less digits than its factorization.
313213230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35183 (or 35174 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 313213230 is about 17697.8312230623. The cubic root of 313213230 is about 679.1202796343.
Subtracting from 313213230 its product of nonzero digits (324), we obtain a triangular number (313212906 = T25028).
Adding to 313213230 its reverse (32312313), we get a palindrome (345525543).
The spelling of 313213230 in words is "three hundred thirteen million, two hundred thirteen thousand, two hundred thirty".
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