Base | Representation |
---|---|
bin | 111010001001… |
… | …0111000110111 |
3 | 2010100212000202 |
4 | 1310102320313 |
5 | 30301023241 |
6 | 3005231115 |
7 | 520061450 |
oct | 164227067 |
9 | 63325022 |
10 | 30486071 |
11 | 16232700 |
12 | a26249b |
13 | 64152c5 |
14 | 4098127 |
15 | 2a22d9b |
hex | 1d12e37 |
30486071 has 12 divisors (see below), whose sum is σ = 38297616. Its totient is φ = 23754720.
The previous prime is 30486037. The next prime is 30486073. The reversal of 30486071 is 17068403.
It is not a de Polignac number, because 30486071 - 210 = 30485047 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30486073) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17150 + ... + 18843.
It is an arithmetic number, because the mean of its divisors is an integer number (3191468).
Almost surely, 230486071 is an apocalyptic number.
30486071 is a deficient number, since it is larger than the sum of its proper divisors (7811545).
30486071 is a wasteful number, since it uses less digits than its factorization.
30486071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36022 (or 36011 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 29.
The square root of 30486071 is about 5521.4192921748. The cubic root of 30486071 is about 312.3924186483.
It can be divided in two parts, 3048 and 6071, that added together give a palindrome (9119).
The spelling of 30486071 in words is "thirty million, four hundred eighty-six thousand, seventy-one".
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