Base | Representation |
---|---|
bin | 111010010111… |
… | …0110000111111 |
3 | 2010120122122210 |
4 | 1310232300333 |
5 | 30313202010 |
6 | 3011511503 |
7 | 521045400 |
oct | 164566077 |
9 | 63518583 |
10 | 30600255 |
11 | 16300474 |
12 | a2b8593 |
13 | 645527a |
14 | 40c79a7 |
15 | 2a46b20 |
hex | 1d2ec3f |
30600255 has 96 divisors (see below), whose sum is σ = 63037440. Its totient is φ = 12579840.
The previous prime is 30600209. The next prime is 30600257. The reversal of 30600255 is 55200603.
It is not a de Polignac number, because 30600255 - 29 = 30599743 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30600257) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 387306 + ... + 387384.
It is an arithmetic number, because the mean of its divisors is an integer number (656640).
Almost surely, 230600255 is an apocalyptic number.
30600255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30600255 is an abundant number, since it is smaller than the sum of its proper divisors (32437185).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30600255 is a wasteful number, since it uses less digits than its factorization.
30600255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149 (or 142 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 21.
The square root of 30600255 is about 5531.7497231889. The cubic root of 30600255 is about 312.7819492716.
Adding to 30600255 its reverse (55200603), we get a palindrome (85800858).
The spelling of 30600255 in words is "thirty million, six hundred thousand, two hundred fifty-five".
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