Base | Representation |
---|---|
bin | 100000011111010001… |
… | …0011100000000001000 |
3 | 20200002022002202120021 |
4 | 1000332202130000020 |
5 | 2120341241113340 |
6 | 52015025110224 |
7 | 5016635044330 |
oct | 1007642340010 |
9 | 220068082507 |
10 | 69768691720 |
11 | 27652675802 |
12 | 11631488374 |
13 | 676b54aa50 |
14 | 353c0040c0 |
15 | 1c3516ee4a |
hex | 103e89c008 |
69768691720 has 64 divisors (see below), whose sum is σ = 193205617920. Its totient is φ = 22080639744.
The previous prime is 69768691691. The next prime is 69768691739. The reversal of 69768691720 is 2719686796.
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, 9579972 + ... + 9587251.
It is an arithmetic number, because the mean of its divisors is an integer number (3018837780).
Almost surely, 269768691720 is an apocalyptic number.
It is an amenable number.
69768691720 is an abundant number, since it is smaller than the sum of its proper divisors (123436926200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69768691720 is a wasteful number, since it uses less digits than its factorization.
69768691720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19167254 (or 19167250 counting only the distinct ones).
The product of its (nonzero) digits is 13716864, while the sum is 61.
The spelling of 69768691720 in words is "sixty-nine billion, seven hundred sixty-eight million, six hundred ninety-one thousand, seven hundred twenty".
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