Base | Representation |
---|---|
bin | 111001111010… |
… | …0010111111110 |
3 | 2010010111120200 |
4 | 1303310113332 |
5 | 30233023321 |
6 | 3002424330 |
7 | 516031200 |
oct | 163642776 |
9 | 63114520 |
10 | 30361086 |
11 | 16157808 |
12 | a2020a6 |
13 | 63a0452 |
14 | 4064770 |
15 | 29ead26 |
hex | 1cf45fe |
30361086 has 72 divisors (see below), whose sum is σ = 79227720. Its totient is φ = 8368416.
The previous prime is 30361073. The next prime is 30361087. The reversal of 30361086 is 68016303.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30361087) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24985 + ... + 26171.
It is an arithmetic number, because the mean of its divisors is an integer number (1100385).
Almost surely, 230361086 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30361086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39613860).
30361086 is an abundant number, since it is smaller than the sum of its proper divisors (48866634).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30361086 is a wasteful number, since it uses less digits than its factorization.
30361086 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1238 (or 1228 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The square root of 30361086 is about 5510.0894729578. The cubic root of 30361086 is about 311.9649245579.
Adding to 30361086 its reverse (68016303), we get a palindrome (98377389).
The spelling of 30361086 in words is "thirty million, three hundred sixty-one thousand, eighty-six".
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