Base | Representation |
---|---|
bin | 11100010101001100… |
… | …001111111000000000 |
3 | 2220112001011112012020 |
4 | 130111030033320000 |
5 | 444300044201420 |
6 | 21550324401440 |
7 | 2124562212036 |
oct | 342514177000 |
9 | 86461145166 |
10 | 30420303360 |
11 | 119a0517187 |
12 | 5a8b846280 |
13 | 2b3a494c05 |
14 | 16881b6556 |
15 | bd099d340 |
hex | 71530fe00 |
30420303360 has 80 divisors (see below), whose sum is σ = 97249931856. Its totient is φ = 8112078848.
The previous prime is 30420303341. The next prime is 30420303409. The reversal of 30420303360 is 6330302403.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 30420303360.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972809 + ... + 1988168.
Almost surely, 230420303360 is an apocalyptic number.
30420303360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30420303360 is an abundant number, since it is smaller than the sum of its proper divisors (66829628496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30420303360 is an equidigital number, since it uses as much as digits as its factorization.
30420303360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3961003 (or 3960987 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 24.
Adding to 30420303360 its reverse (6330302403), we get a palindrome (36750605763).
The spelling of 30420303360 in words is "thirty billion, four hundred twenty million, three hundred three thousand, three hundred sixty".
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