Base | Representation |
---|---|
bin | 11010010110111111110 |
3 | 1121212211110 |
4 | 3102313332 |
5 | 210114432 |
6 | 30302450 |
7 | 10225125 |
oct | 3226776 |
9 | 1555743 |
10 | 863742 |
11 | 53aa40 |
12 | 357a26 |
13 | 2431b9 |
14 | 186abc |
15 | 120dcc |
hex | d2dfe |
863742 has 32 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 249920.
The previous prime is 863729. The next prime is 863743. The reversal of 863742 is 247368.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (863743) by changing a digit.
It is an upside-down number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1234 + ... + 1802.
It is an arithmetic number, because the mean of its divisors is an integer number (61560).
2863742 is an apocalyptic number.
863742 is the 759-th pentagonal number.
It is a practical number, because each smaller number is the sum of distinct divisors of 863742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984960).
863742 is an abundant number, since it is smaller than the sum of its proper divisors (1106178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
863742 is a wasteful number, since it uses less digits than its factorization.
863742 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 608.
The product of its digits is 8064, while the sum is 30.
The square root of 863742 is about 929.3772108245. The cubic root of 863742 is about 95.2345818625.
It can be divided in two parts, 86 and 3742, that added together give a triangular number (3828 = T87).
The spelling of 863742 in words is "eight hundred sixty-three thousand, seven hundred forty-two".
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