Base | Representation |
---|---|
bin | 111001001110… |
… | …0111001001000 |
3 | 2002110022001100 |
4 | 1302130321020 |
5 | 30140042020 |
6 | 2551021400 |
7 | 513006414 |
oct | 162347110 |
9 | 62408040 |
10 | 30002760 |
11 | 15a32577 |
12 | a06a860 |
13 | 62a6318 |
14 | 3dadd44 |
15 | 2979a90 |
hex | 1c9ce48 |
30002760 has 48 divisors (see below), whose sum is σ = 97510140. Its totient is φ = 8000640.
The previous prime is 30002759. The next prime is 30002771. The reversal of 30002760 is 6720003.
It can be written as a sum of positive squares in 2 ways, for example, as 29224836 + 777924 = 5406^2 + 882^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41311 + ... + 42030.
Almost surely, 230002760 is an apocalyptic number.
30002760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30002760 is an abundant number, since it is smaller than the sum of its proper divisors (67507380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30002760 is a wasteful number, since it uses less digits than its factorization.
30002760 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83358 (or 83351 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 18.
The square root of 30002760 is about 5477.4775216335. The cubic root of 30002760 is about 310.7327791495.
Adding to 30002760 its reverse (6720003), we get a palindrome (36722763).
The spelling of 30002760 in words is "thirty million, two thousand, seven hundred sixty".
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