Base | Representation |
---|---|
bin | 111001001111… |
… | …1100111001000 |
3 | 2002110212022210 |
4 | 1302133213020 |
5 | 30140421041 |
6 | 2551145120 |
7 | 513054033 |
oct | 162374710 |
9 | 62425283 |
10 | 30013896 |
11 | 15a3a980 |
12 | a0751a0 |
13 | 62ab403 |
14 | 3db401a |
15 | 297d016 |
hex | 1c9f9c8 |
30013896 has 64 divisors (see below), whose sum is σ = 85432320. Its totient is φ = 8697920.
The previous prime is 30013861. The next prime is 30013903. The reversal of 30013896 is 69831003.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3601 + ... + 8543.
It is an arithmetic number, because the mean of its divisors is an integer number (1334880).
Almost surely, 230013896 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30013896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42716160).
30013896 is an abundant number, since it is smaller than the sum of its proper divisors (55418424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30013896 is a wasteful number, since it uses less digits than its factorization.
30013896 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4986 (or 4982 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 30.
The square root of 30013896 is about 5478.4939536336. The cubic root of 30013896 is about 310.7712188597.
Adding to 30013896 its reverse (69831003), we get a palindrome (99844899).
It can be divided in two parts, 300 and 13896, that added together give a triangular number (14196 = T168).
The spelling of 30013896 in words is "thirty million, thirteen thousand, eight hundred ninety-six".
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