Base | Representation |
---|---|
bin | 11100101101111110… |
… | …001111101001111000 |
3 | 2221121000111021222111 |
4 | 130231332033221320 |
5 | 1001123013002330 |
6 | 22055455502104 |
7 | 2141101131562 |
oct | 345576175170 |
9 | 87530437874 |
10 | 30836062840 |
11 | 12094176460 |
12 | 5b86b27934 |
13 | 2ba566373b |
14 | 16c74c0332 |
15 | c0722632a |
hex | 72df8fa78 |
30836062840 has 64 divisors (see below), whose sum is σ = 75990337920. Its totient is φ = 11168400000.
The previous prime is 30836062837. The next prime is 30836062879. The reversal of 30836062840 is 4826063803.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a junction number, because it is equal to n+sod(n) for n = 30836062793 and 30836062802.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29166 + ... + 250045.
It is an arithmetic number, because the mean of its divisors is an integer number (1187349030).
Almost surely, 230836062840 is an apocalyptic number.
It is an amenable number.
30836062840 is an abundant number, since it is smaller than the sum of its proper divisors (45154275080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30836062840 is a wasteful number, since it uses less digits than its factorization.
30836062840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 279484 (or 279480 counting only the distinct ones).
The product of its (nonzero) digits is 165888, while the sum is 40.
The spelling of 30836062840 in words is "thirty billion, eight hundred thirty-six million, sixty-two thousand, eight hundred forty".
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