Base | Representation |
---|---|
bin | 11100001001111100… |
… | …101111001100110000 |
3 | 2220000220020212112120 |
4 | 130021330233030300 |
5 | 443403303003414 |
6 | 21515505554240 |
7 | 2120112052011 |
oct | 341174571460 |
9 | 86026225476 |
10 | 30231687984 |
11 | 11903aaa703 |
12 | 5a38645980 |
13 | 2b0a395794 |
14 | 166b119008 |
15 | bbe1422a9 |
hex | 709f2f330 |
30231687984 has 40 divisors (see below), whose sum is σ = 78274876992. Its totient is φ = 10054474560.
The previous prime is 30231687953. The next prime is 30231688061. The reversal of 30231687984 is 48978613203.
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, 689602 + ... + 732129.
Almost surely, 230231687984 is an apocalyptic number.
It is an amenable number.
30231687984 is an abundant number, since it is smaller than the sum of its proper divisors (48043189008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30231687984 is a wasteful number, since it uses less digits than its factorization.
30231687984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1422185 (or 1422179 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 51.
The spelling of 30231687984 in words is "thirty billion, two hundred thirty-one million, six hundred eighty-seven thousand, nine hundred eighty-four".
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