Base | Representation |
---|---|
bin | 111010100100… |
… | …1110011100010 |
3 | 2010210021120211 |
4 | 1311021303202 |
5 | 30330223020 |
6 | 3014124334 |
7 | 522016321 |
oct | 165116342 |
9 | 63707524 |
10 | 30711010 |
11 | 16376700 |
12 | a3506aa |
13 | 64937c5 |
14 | 41160b8 |
15 | 2a6985a |
hex | 1d49ce2 |
30711010 has 48 divisors (see below), whose sum is σ = 64379448. Its totient is φ = 10503680.
The previous prime is 30711007. The next prime is 30711017. The reversal of 30711010 is 1011703.
It can be written as a sum of positive squares in 4 ways, for example, as 30371121 + 339889 = 5511^2 + 583^2 .
It is a super-2 number, since 2×307110102 = 1886332270440200, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30711017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19824 + ... + 21316.
Almost surely, 230711010 is an apocalyptic number.
30711010 is an abundant number, since it is smaller than the sum of its proper divisors (33668438).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30711010 is a wasteful number, since it uses less digits than its factorization.
30711010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1539 (or 1528 counting only the distinct ones).
The product of its (nonzero) digits is 21, while the sum is 13.
The square root of 30711010 is about 5541.7515281723. The cubic root of 30711010 is about 313.1588573926.
Adding to 30711010 its reverse (1011703), we get a palindrome (31722713).
The spelling of 30711010 in words is "thirty million, seven hundred eleven thousand, ten".
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