Base | Representation |
---|---|
bin | 11101001110011001… |
… | …011011000011000000 |
3 | 2222222221010010110122 |
4 | 131032121123003000 |
5 | 1003231243331204 |
6 | 22225451315412 |
7 | 2160425044310 |
oct | 351631330300 |
9 | 88887103418 |
10 | 31380058304 |
11 | 12343252291 |
12 | 60b914bb68 |
13 | 2c61280b4a |
14 | 1739849440 |
15 | c39d800be |
hex | 74e65b0c0 |
31380058304 has 112 divisors (see below), whose sum is σ = 77494790400. Its totient is φ = 12301341696.
The previous prime is 31380058301. The next prime is 31380058313. The reversal of 31380058304 is 40385008313.
It is a tau number, because it is divible by the number of its divisors (112).
It is not an unprimeable number, because it can be changed into a prime (31380058301) 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, 183287 + ... + 310409.
Almost surely, 231380058304 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 31380058304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38747395200).
31380058304 is an abundant number, since it is smaller than the sum of its proper divisors (46114732096).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31380058304 is a wasteful number, since it uses less digits than its factorization.
31380058304 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127190 (or 127180 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 35.
The spelling of 31380058304 in words is "thirty-one billion, three hundred eighty million, fifty-eight thousand, three hundred four".
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