Base | Representation |
---|---|
bin | 11100101001000000… |
… | …010010010111101000 |
3 | 2221101012122122100120 |
4 | 130221000102113220 |
5 | 1000440143242133 |
6 | 22043321203240 |
7 | 2136036511653 |
oct | 345100222750 |
9 | 87335578316 |
10 | 30752712168 |
11 | 12051116902 |
12 | 5b63030520 |
13 | 2b912cc209 |
14 | 16ba3c489a |
15 | beec5eab3 |
hex | 7290125e8 |
30752712168 has 64 divisors (see below), whose sum is σ = 78625451520. Its totient is φ = 10020753600.
The previous prime is 30752712167. The next prime is 30752712227. The reversal of 30752712168 is 86121725703.
It is not an unprimeable number, because it can be changed into a prime (30752712167) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137653 + ... + 283643.
It is an arithmetic number, because the mean of its divisors is an integer number (1228522680).
Almost surely, 230752712168 is an apocalyptic number.
It is an amenable number.
30752712168 is an abundant number, since it is smaller than the sum of its proper divisors (47872739352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30752712168 is a wasteful number, since it uses less digits than its factorization.
30752712168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146198 (or 146194 counting only the distinct ones).
The product of its (nonzero) digits is 141120, while the sum is 42.
The spelling of 30752712168 in words is "thirty billion, seven hundred fifty-two million, seven hundred twelve thousand, one hundred sixty-eight".
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