Base | Representation |
---|---|
bin | 111010110101… |
… | …0100001101110 |
3 | 2011001002102211 |
4 | 1311222201232 |
5 | 30344020123 |
6 | 3021041034 |
7 | 523115140 |
oct | 165524156 |
9 | 64032384 |
10 | 30845038 |
11 | 16458374 |
12 | a3b617a |
13 | 650c803 |
14 | 414cc90 |
15 | 2a9440d |
hex | 1d6a86e |
30845038 has 64 divisors (see below), whose sum is σ = 59875200. Its totient is φ = 11612160.
The previous prime is 30845033. The next prime is 30845053. The reversal of 30845038 is 83054803.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30845033) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282928 + ... + 283036.
It is an arithmetic number, because the mean of its divisors is an integer number (935550).
Almost surely, 230845038 is an apocalyptic number.
30845038 is a deficient number, since it is larger than the sum of its proper divisors (29030162).
30845038 is a wasteful number, since it uses less digits than its factorization.
30845038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 205.
The product of its (nonzero) digits is 11520, while the sum is 31.
The square root of 30845038 is about 5553.8309300878. The cubic root of 30845038 is about 313.6137555464.
The spelling of 30845038 in words is "thirty million, eight hundred forty-five thousand, thirty-eight".
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