Base | Representation |
---|---|
bin | 111010001001… |
… | …1111000000000 |
3 | 2010101001120102 |
4 | 1310103320000 |
5 | 30301140422 |
6 | 3005301532 |
7 | 520106312 |
oct | 164237000 |
9 | 63331512 |
10 | 30490112 |
11 | 16235744 |
12 | a2648a8 |
13 | 64170b3 |
14 | 40997b2 |
15 | 2a24192 |
hex | 1d13e00 |
30490112 has 80 divisors (see below), whose sum is σ = 67174272. Its totient is φ = 13762560.
The previous prime is 30490091. The next prime is 30490151. The reversal of 30490112 is 21109403.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269768 + ... + 269880.
Almost surely, 230490112 is an apocalyptic number.
30490112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30490112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33587136).
30490112 is an abundant number, since it is smaller than the sum of its proper divisors (36684160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30490112 is a wasteful number, since it uses less digits than its factorization.
30490112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 179 (or 163 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 30490112 is about 5521.7852185684. The cubic root of 30490112 is about 312.4062208203.
Adding to 30490112 its reverse (21109403), we get a palindrome (51599515).
The spelling of 30490112 in words is "thirty million, four hundred ninety thousand, one hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •