Base | Representation |
---|---|
bin | 11101001001011010… |
… | …001011001011101000 |
3 | 2222210002122021212000 |
4 | 131021122023023220 |
5 | 1003043332310014 |
6 | 22213301451000 |
7 | 2155360515300 |
oct | 351132131350 |
9 | 88702567760 |
10 | 31296369384 |
11 | 122aaa91595 |
12 | 6095110a60 |
13 | 2c49b2b687 |
14 | 172c6a2600 |
15 | c3284d509 |
hex | 74968b2e8 |
31296369384 has 288 divisors, whose sum is σ = 106743398400. Its totient is φ = 8470163520.
The previous prime is 31296369371. The next prime is 31296369407. The reversal of 31296369384 is 48396369213.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a nude number because it is divisible by every one of its digits.
It is a self number, because there is not a number n which added to its sum of digits gives 31296369384.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3816729 + ... + 3824919.
It is an arithmetic number, because the mean of its divisors is an integer number (370636800).
Almost surely, 231296369384 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 31296369384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53371699200).
31296369384 is an abundant number, since it is smaller than the sum of its proper divisors (75447029016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31296369384 is a wasteful number, since it uses less digits than its factorization.
31296369384 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8258 (or 8222 counting only the distinct ones).
The product of its digits is 5038848, while the sum is 54.
The spelling of 31296369384 in words is "thirty-one billion, two hundred ninety-six million, three hundred sixty-nine thousand, three hundred eighty-four".
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