Base | Representation |
---|---|
bin | 111001011101… |
… | …1010001010110 |
3 | 2002200121201212 |
4 | 1302323101112 |
5 | 30203032230 |
6 | 2553421422 |
7 | 514035242 |
oct | 162732126 |
9 | 62617655 |
10 | 30127190 |
11 | 16008005 |
12 | a10a872 |
13 | 631ab52 |
14 | 4003422 |
15 | 29a1895 |
hex | 1cbb456 |
30127190 has 8 divisors (see below), whose sum is σ = 54228960. Its totient is φ = 12050872.
The previous prime is 30127183. The next prime is 30127199. The reversal of 30127190 is 9172103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×301271902 = 1815295154592200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30127199) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506350 + ... + 1506369.
It is an arithmetic number, because the mean of its divisors is an integer number (6778620).
Almost surely, 230127190 is an apocalyptic number.
30127190 is a deficient number, since it is larger than the sum of its proper divisors (24101770).
30127190 is a wasteful number, since it uses less digits than its factorization.
30127190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3012726.
The product of its (nonzero) digits is 378, while the sum is 23.
The square root of 30127190 is about 5488.8240999325. The cubic root of 30127190 is about 311.1617524801.
Adding to 30127190 its reverse (9172103), we get a palindrome (39299293).
The spelling of 30127190 in words is "thirty million, one hundred twenty-seven thousand, one hundred ninety".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •