Base | Representation |
---|---|
bin | 1111010000011… |
… | …10011011010001 |
3 | 22220211022220120 |
4 | 13220032123101 |
5 | 230231012421 |
6 | 20411100453 |
7 | 3112600110 |
oct | 750163321 |
9 | 286738816 |
10 | 127985361 |
11 | 66276329 |
12 | 36a41729 |
13 | 206917aa |
14 | 12dd7c77 |
15 | b3818c6 |
hex | 7a0e6d1 |
127985361 has 16 divisors (see below), whose sum is σ = 195216384. Its totient is φ = 73062864.
The previous prime is 127985359. The next prime is 127985369. The reversal of 127985361 is 163589721.
It is not a de Polignac number, because 127985361 - 21 = 127985359 is a prime.
It is not an unprimeable number, because it can be changed into a prime (127985369) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25116 + ... + 29778.
It is an arithmetic number, because the mean of its divisors is an integer number (12201024).
Almost surely, 2127985361 is an apocalyptic number.
It is an amenable number.
127985361 is a deficient number, since it is larger than the sum of its proper divisors (67231023).
127985361 is a wasteful number, since it uses less digits than its factorization.
127985361 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5980.
The product of its digits is 90720, while the sum is 42.
The square root of 127985361 is about 11313.0615219754. The cubic root of 127985361 is about 503.9492067419.
The spelling of 127985361 in words is "one hundred twenty-seven million, nine hundred eighty-five thousand, three hundred sixty-one".
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