Base | Representation |
---|---|
bin | 111001110110… |
… | …1000010110110 |
3 | 2010001222101200 |
4 | 1303231002312 |
5 | 30231043222 |
6 | 3002033330 |
7 | 515544516 |
oct | 163550266 |
9 | 63058350 |
10 | 30331062 |
11 | 161371a3 |
12 | a1a8846 |
13 | 638c898 |
14 | 4057846 |
15 | 29e1eac |
hex | 1ced0b6 |
30331062 has 48 divisors (see below), whose sum is σ = 68363568. Its totient is φ = 9711360.
The previous prime is 30331061. The next prime is 30331069. The reversal of 30331062 is 26013303.
It is a happy number.
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 (30331061) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53593 + ... + 54155.
It is an arithmetic number, because the mean of its divisors is an integer number (1424241).
Almost surely, 230331062 is an apocalyptic number.
30331062 is an abundant number, since it is smaller than the sum of its proper divisors (38032506).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30331062 is a wasteful number, since it uses less digits than its factorization.
30331062 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 685 (or 682 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 30331062 is about 5507.3643424055. The cubic root of 30331062 is about 311.8620568709.
Adding to 30331062 its reverse (26013303), we get a palindrome (56344365).
It can be divided in two parts, 3033 and 1062, that added together give a triangular number (4095 = T90).
The spelling of 30331062 in words is "thirty million, three hundred thirty-one thousand, sixty-two".
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