Base | Representation |
---|---|
bin | 111001111100… |
… | …1000111000110 |
3 | 2010011111012012 |
4 | 1303321013012 |
5 | 30234133421 |
6 | 3003054222 |
7 | 516141563 |
oct | 163710706 |
9 | 63144165 |
10 | 30380486 |
11 | 16170344 |
12 | a211372 |
13 | 63a9226 |
14 | 406b86a |
15 | 2a0195b |
hex | 1cf91c6 |
30380486 has 4 divisors (see below), whose sum is σ = 45570732. Its totient is φ = 15190242.
The previous prime is 30380461. The next prime is 30380503. The reversal of 30380486 is 68408303.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7595120 + ... + 7595123.
It is an arithmetic number, because the mean of its divisors is an integer number (11392683).
Almost surely, 230380486 is an apocalyptic number.
30380486 is a deficient number, since it is larger than the sum of its proper divisors (15190246).
30380486 is a wasteful number, since it uses less digits than its factorization.
30380486 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15190245.
The product of its (nonzero) digits is 13824, while the sum is 32.
The square root of 30380486 is about 5511.8495988189. The cubic root of 30380486 is about 312.0313564256.
Adding to 30380486 its reverse (68408303), we get a palindrome (98788789).
The spelling of 30380486 in words is "thirty million, three hundred eighty thousand, four hundred eighty-six".
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