Base | Representation |
---|---|
bin | 11100101111011100… |
… | …111111101101111000 |
3 | 2221122202020012212020 |
4 | 130233130333231320 |
5 | 1001200342314430 |
6 | 22102144114440 |
7 | 2141522222001 |
oct | 345734775570 |
9 | 87582205766 |
10 | 30860901240 |
11 | 120a71a0964 |
12 | 5b93305a20 |
13 | 2baa84c210 |
14 | 16ca9081a8 |
15 | c094d0b10 |
hex | 72f73fb78 |
30860901240 has 256 divisors, whose sum is σ = 107189913600. Its totient is φ = 7043272704.
The previous prime is 30860901229. The next prime is 30860901263. The reversal of 30860901240 is 4210906803.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1382004 + ... + 1404156.
It is an arithmetic number, because the mean of its divisors is an integer number (418710600).
Almost surely, 230860901240 is an apocalyptic number.
30860901240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30860901240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53594956800).
30860901240 is an abundant number, since it is smaller than the sum of its proper divisors (76329012360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30860901240 is a wasteful number, since it uses less digits than its factorization.
30860901240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22246 (or 22242 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 33.
The spelling of 30860901240 in words is "thirty billion, eight hundred sixty million, nine hundred one thousand, two hundred forty".
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