Base | Representation |
---|---|
bin | 111001101111… |
… | …0011000111110 |
3 | 2002221221001120 |
4 | 1303132120332 |
5 | 30222133123 |
6 | 3000451410 |
7 | 515204520 |
oct | 163363076 |
9 | 62857046 |
10 | 30271038 |
11 | 160a6096 |
12 | a179b66 |
13 | 636b475 |
14 | 403da10 |
15 | 29ce2e3 |
hex | 1cde63e |
30271038 has 32 divisors (see below), whose sum is σ = 70882560. Its totient is φ = 8437440.
The previous prime is 30271027. The next prime is 30271039. The reversal of 30271038 is 83017203.
It is a junction number, because it is equal to n+sod(n) for n = 30270999 and 30271017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30271039) 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, 7068 + ... + 10511.
It is an arithmetic number, because the mean of its divisors is an integer number (2215080).
Almost surely, 230271038 is an apocalyptic number.
30271038 is an abundant number, since it is smaller than the sum of its proper divisors (40611522).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30271038 is a wasteful number, since it uses less digits than its factorization.
30271038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17632.
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 30271038 is about 5501.9122130401. The cubic root of 30271038 is about 311.6562000292.
The spelling of 30271038 in words is "thirty million, two hundred seventy-one thousand, thirty-eight".
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