Base | Representation |
---|---|
bin | 111001100100… |
… | …0101011110011 |
3 | 2002210102002201 |
4 | 1303020223303 |
5 | 30211312011 |
6 | 2554524031 |
7 | 514354360 |
oct | 163105363 |
9 | 62712081 |
10 | 30182131 |
11 | 16045311 |
12 | a136617 |
13 | 6339b65 |
14 | 4019467 |
15 | 29b2cc1 |
hex | 1cc8af3 |
30182131 has 16 divisors (see below), whose sum is σ = 35481600. Its totient is φ = 25138080.
The previous prime is 30182111. The next prime is 30182137. The reversal of 30182131 is 13128103.
30182131 = T106 + T107 + ... + T566.
It is a cyclic number.
It is not a de Polignac number, because 30182131 - 213 = 30173939 is a prime.
It is a super-2 number, since 2×301821312 = 1821922063402322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30182099 and 30182108.
It is not an unprimeable number, because it can be changed into a prime (30182137) 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, 65241 + ... + 65701.
It is an arithmetic number, because the mean of its divisors is an integer number (2217600).
Almost surely, 230182131 is an apocalyptic number.
30182131 is a deficient number, since it is larger than the sum of its proper divisors (5299469).
30182131 is a wasteful number, since it uses less digits than its factorization.
30182131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 714.
The product of its (nonzero) digits is 144, while the sum is 19.
The square root of 30182131 is about 5493.8266263143. The cubic root of 30182131 is about 311.3507861111.
The spelling of 30182131 in words is "thirty million, one hundred eighty-two thousand, one hundred thirty-one".
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