Base | Representation |
---|---|
bin | 11110111011101010000100… |
… | …01101000011001100011000 |
3 | 22220211200211010210021201121 |
4 | 33131311002031003030120 |
5 | 32403421444443041320 |
6 | 400400105003255024 |
7 | 20220214410305404 |
oct | 1735650215031430 |
9 | 286750733707647 |
10 | 68020507783960 |
11 | 1a745376397a26 |
12 | 77669b651a474 |
13 | 2bc53ca0c9354 |
14 | 12b22d28bc104 |
15 | 7ce5821388aa |
hex | 3ddd42343318 |
68020507783960 has 64 divisors (see below), whose sum is σ = 156865658572800. Its totient is φ = 26536440341376.
The previous prime is 68020507783957. The next prime is 68020507784003. The reversal of 68020507783960 is 6938770502086.
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, 113173702 + ... + 113773141.
It is an arithmetic number, because the mean of its divisors is an integer number (2451025915200).
Almost surely, 268020507783960 is an apocalyptic number.
It is an amenable number.
68020507783960 is an abundant number, since it is smaller than the sum of its proper divisors (88845150788840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68020507783960 is a wasteful number, since it uses less digits than its factorization.
68020507783960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 226947040 (or 226947036 counting only the distinct ones).
The product of its (nonzero) digits is 30481920, while the sum is 61.
The spelling of 68020507783960 in words is "sixty-eight trillion, twenty billion, five hundred seven million, seven hundred eighty-three thousand, nine hundred sixty".
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