Base | Representation |
---|---|
bin | 11100001101010011… |
… | …010000011001100000 |
3 | 2220011211001220011221 |
4 | 130031103100121200 |
5 | 444012202012114 |
6 | 21525235144424 |
7 | 2121364044610 |
oct | 341523203140 |
9 | 86154056157 |
10 | 30287922784 |
11 | 11932819749 |
12 | 5a53445114 |
13 | 2b18c24a02 |
14 | 1674796a40 |
15 | bc404e524 |
hex | 70d4d0660 |
30287922784 has 96 divisors (see below), whose sum is σ = 72845692416. Its totient is φ = 12113249280.
The previous prime is 30287922779. The next prime is 30287922827. The reversal of 30287922784 is 48722978203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139539 + ... + 282925.
It is an arithmetic number, because the mean of its divisors is an integer number (758809296).
Almost surely, 230287922784 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30287922784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36422846208).
30287922784 is an abundant number, since it is smaller than the sum of its proper divisors (42557769632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30287922784 is a wasteful number, since it uses less digits than its factorization.
30287922784 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 143468 (or 143460 counting only the distinct ones).
The product of its (nonzero) digits is 2709504, while the sum is 52.
The spelling of 30287922784 in words is "thirty billion, two hundred eighty-seven million, nine hundred twenty-two thousand, seven hundred eighty-four".
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