Base | Representation |
---|---|
bin | 111010001001… |
… | …0111001101110 |
3 | 2010100212002210 |
4 | 1310102321232 |
5 | 30301024001 |
6 | 3005231250 |
7 | 520061556 |
oct | 164227156 |
9 | 63325083 |
10 | 30486126 |
11 | 16232750 |
12 | a262526 |
13 | 6415338 |
14 | 4098166 |
15 | 2a22dd6 |
hex | 1d12e6e |
30486126 has 32 divisors (see below), whose sum is σ = 67651200. Its totient is φ = 9080480.
The previous prime is 30486121. The next prime is 30486161. The reversal of 30486126 is 62168403.
It is a junction number, because it is equal to n+sod(n) for n = 30486093 and 30486102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30486121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21 + ... + 7808.
It is an arithmetic number, because the mean of its divisors is an integer number (2114100).
Almost surely, 230486126 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30486126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33825600).
30486126 is an abundant number, since it is smaller than the sum of its proper divisors (37165074).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30486126 is a wasteful number, since it uses less digits than its factorization.
30486126 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7904.
The product of its (nonzero) digits is 6912, while the sum is 30.
The square root of 30486126 is about 5521.4242727760. The cubic root of 30486126 is about 312.3926065108.
The spelling of 30486126 in words is "thirty million, four hundred eighty-six thousand, one hundred twenty-six".
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