Base | Representation |
---|---|
bin | 1101111001010101011000… |
… | …01100011000101000011000 |
3 | 11000012020200211010120211100 |
4 | 12330222230030120220120 |
5 | 13001122310241142022 |
6 | 144553453514031400 |
7 | 6302456016501450 |
oct | 674525414305030 |
9 | 130166624116740 |
10 | 30557286271512 |
11 | 98112aa5231a0 |
12 | 3516259418560 |
13 | 1408702a34ab0 |
14 | 778da2898d60 |
15 | 37ece9cb71ac |
hex | 1bcaac318a18 |
30557286271512 has 768 divisors, whose sum is σ = 117717525918720. Its totient is φ = 6891717427200.
The previous prime is 30557286271489. The next prime is 30557286271541. The reversal of 30557286271512 is 21517268275503.
30557286271512 is a `hidden beast` number, since 3 + 0 + 5 + 5 + 7 + 2 + 8 + 627 + 1 + 5 + 1 + 2 = 666.
It is a super-2 number, since 2×305572862715122 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2699162812 + ... + 2699174132.
It is an arithmetic number, because the mean of its divisors is an integer number (153278028540).
Almost surely, 230557286271512 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 30557286271512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58858762959360).
30557286271512 is an abundant number, since it is smaller than the sum of its proper divisors (87160239647208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30557286271512 is a wasteful number, since it uses less digits than its factorization.
30557286271512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13584 (or 13577 counting only the distinct ones).
The product of its (nonzero) digits is 7056000, while the sum is 54.
The spelling of 30557286271512 in words is "thirty trillion, five hundred fifty-seven billion, two hundred eighty-six million, two hundred seventy-one thousand, five hundred twelve".
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