Base | Representation |
---|---|
bin | 111010001001… |
… | …0111101000000 |
3 | 2010100212101120 |
4 | 1310102331000 |
5 | 30301030321 |
6 | 3005232240 |
7 | 520062306 |
oct | 164227500 |
9 | 63325346 |
10 | 30486336 |
11 | 16232921 |
12 | a262680 |
13 | 641546a |
14 | 4098276 |
15 | 2a22ec6 |
hex | 1d12f40 |
30486336 has 112 divisors (see below), whose sum is σ = 86928960. Its totient is φ = 9400320.
The previous prime is 30486311. The next prime is 30486353. The reversal of 30486336 is 63368403.
30486336 is a nontrivial binomial coefficient, being equal to C(7809, 2).
It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 30486297 and 30486306.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222460 + ... + 222596.
Almost surely, 230486336 is an apocalyptic number.
30486336 is the 7808-th triangular number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30486336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43464480).
30486336 is an abundant number, since it is smaller than the sum of its proper divisors (56442624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30486336 is a wasteful number, since it uses less digits than its factorization.
30486336 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232 (or 222 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 33.
The square root of 30486336 is about 5521.4432895757. The cubic root of 30486336 is about 312.3933238021.
The spelling of 30486336 in words is "thirty million, four hundred eighty-six thousand, three hundred thirty-six".
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