Base | Representation |
---|---|
bin | 111010000000… |
… | …1100011101110 |
3 | 2010020020122200 |
4 | 1310001203232 |
5 | 30241240321 |
6 | 3003522330 |
7 | 516344502 |
oct | 164014356 |
9 | 63206580 |
10 | 30415086 |
11 | 16194339 |
12 | a2293a6 |
13 | 63bbbc0 |
14 | 407a302 |
15 | 2a0bd26 |
hex | 1d018ee |
30415086 has 48 divisors (see below), whose sum is σ = 74714640. Its totient is φ = 8864640.
The previous prime is 30415069. The next prime is 30415087. The reversal of 30415086 is 68051403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30415087) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1026 + ... + 7866.
It is an arithmetic number, because the mean of its divisors is an integer number (1556555).
Almost surely, 230415086 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30415086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37357320).
30415086 is an abundant number, since it is smaller than the sum of its proper divisors (44299554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30415086 is a wasteful number, since it uses less digits than its factorization.
30415086 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6881 (or 6878 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 30415086 is about 5514.9873979910. The cubic root of 30415086 is about 312.1497678398.
Adding to 30415086 its reverse (68051403), we get a palindrome (98466489).
The spelling of 30415086 in words is "thirty million, four hundred fifteen thousand, eighty-six".
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