Base | Representation |
---|---|
bin | 111010110100… |
… | …1101001100111 |
3 | 2011000220111211 |
4 | 1311221221213 |
5 | 30343411242 |
6 | 3021012251 |
7 | 523101520 |
oct | 165515147 |
9 | 64026454 |
10 | 30841447 |
11 | 164556aa |
12 | a3b4087 |
13 | 650aca0 |
14 | 414b847 |
15 | 2a93317 |
hex | 1d69a67 |
30841447 has 16 divisors (see below), whose sum is σ = 38771712. Its totient is φ = 23879520.
The previous prime is 30841411. The next prime is 30841453. The reversal of 30841447 is 74414803.
It is not a de Polignac number, because 30841447 - 211 = 30839399 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30841847) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672 + ... + 7882.
It is an arithmetic number, because the mean of its divisors is an integer number (2423232).
Almost surely, 230841447 is an apocalyptic number.
30841447 is a deficient number, since it is larger than the sum of its proper divisors (7930265).
30841447 is a wasteful number, since it uses less digits than its factorization.
30841447 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7278.
The product of its (nonzero) digits is 10752, while the sum is 31.
The square root of 30841447 is about 5553.5076303180. The cubic root of 30841447 is about 313.6015846995.
The spelling of 30841447 in words is "thirty million, eight hundred forty-one thousand, four hundred forty-seven".
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