Base | Representation |
---|---|
bin | 11010001101000000000000 |
3 | 110220222111010 |
4 | 122031000000 |
5 | 3224301432 |
6 | 403120520 |
7 | 112246134 |
oct | 32150000 |
9 | 13828433 |
10 | 6868992 |
11 | 3971859 |
12 | 2373140 |
13 | 15666c0 |
14 | cab3c4 |
15 | 90a3cc |
hex | 68d000 |
6868992 has 104 divisors (see below), whose sum is σ = 20182624. Its totient is φ = 2064384.
The previous prime is 6868991. The next prime is 6868999. The reversal of 6868992 is 2998686.
It is a tau number, because it is divible by the number of its divisors (104).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6868991) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159723 + ... + 159765.
Almost surely, 26868992 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6868992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10091312).
6868992 is an abundant number, since it is smaller than the sum of its proper divisors (13313632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6868992 is a wasteful number, since it uses less digits than its factorization.
6868992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83 (or 61 counting only the distinct ones).
The product of its digits is 373248, while the sum is 48.
The square root of 6868992 is about 2620.8761893687. The cubic root of 6868992 is about 190.0922174691.
The spelling of 6868992 in words is "six million, eight hundred sixty-eight thousand, nine hundred ninety-two".
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