Base | Representation |
---|---|
bin | 111001110110… |
… | …1001000010010 |
3 | 2010001222212120 |
4 | 1303231020102 |
5 | 30231101120 |
6 | 3002035110 |
7 | 515545524 |
oct | 163551022 |
9 | 63058776 |
10 | 30331410 |
11 | 1613748a |
12 | a1a8a96 |
13 | 638caa5 |
14 | 4057a14 |
15 | 29e2140 |
hex | 1ced212 |
30331410 has 64 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 7584192.
The previous prime is 30331409. The next prime is 30331439. The reversal of 30331410 is 1413303.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 30331410.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72181 + ... + 72599.
It is an arithmetic number, because the mean of its divisors is an integer number (1209600).
Almost surely, 230331410 is an apocalyptic number.
30331410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30331410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38707200).
30331410 is an abundant number, since it is smaller than the sum of its proper divisors (47082990).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30331410 is a wasteful number, since it uses less digits than its factorization.
30331410 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 575.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 30331410 is about 5507.3959363750. The cubic root of 30331410 is about 311.8632495710.
Adding to 30331410 its reverse (1413303), we get a palindrome (31744713).
It can be divided in two parts, 303 and 31410, that added together give a palindrome (31713).
The spelling of 30331410 in words is "thirty million, three hundred thirty-one thousand, four hundred ten".
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