Base | Representation |
---|---|
bin | 11001010001011111111… |
… | …10010111001110000011 |
3 | 10002000110110201212021210 |
4 | 30220233332113032003 |
5 | 103211424344132404 |
6 | 1502533154221203 |
7 | 116511320341155 |
oct | 14505776271603 |
9 | 3060413655253 |
10 | 868388270979 |
11 | 3053105a3a09 |
12 | 120371584803 |
13 | 63b725126c8 |
14 | 3005ccb2ad5 |
15 | 178c7188689 |
hex | ca2ff97383 |
868388270979 has 8 divisors (see below), whose sum is σ = 1218790555840. Its totient is φ = 548455750056.
The previous prime is 868388270929. The next prime is 868388270993. The reversal of 868388270979 is 979072883868.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 868388270979 - 29 = 868388270467 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 868388270979.
It is not an unprimeable number, because it can be changed into a prime (868388270929) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7617440917 + ... + 7617441030.
It is an arithmetic number, because the mean of its divisors is an integer number (152348819480).
Almost surely, 2868388270979 is an apocalyptic number.
868388270979 is a deficient number, since it is larger than the sum of its proper divisors (350402284861).
868388270979 is a wasteful number, since it uses less digits than its factorization.
868388270979 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15234881969.
The product of its (nonzero) digits is 585252864, while the sum is 75.
The spelling of 868388270979 in words is "eight hundred sixty-eight billion, three hundred eighty-eight million, two hundred seventy thousand, nine hundred seventy-nine".
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