Base | Representation |
---|---|
bin | 10101000010000101000 |
3 | 1022000101122 |
4 | 2220100220 |
5 | 134023232 |
6 | 22434412 |
7 | 5600210 |
oct | 2502050 |
9 | 1260348 |
10 | 689192 |
11 | 430889 |
12 | 292a08 |
13 | 1b190a |
14 | 13d240 |
15 | d9312 |
hex | a8428 |
689192 has 32 divisors (see below), whose sum is σ = 1528320. Its totient is φ = 285120.
The previous prime is 689167. The next prime is 689201. The reversal of 689192 is 291986.
It is a super-2 number, since 2×6891922 = 949971225728, which contains 22 as substring.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689192.
It is an unprimeable number.
689192 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1538 + ... + 1934.
It is an arithmetic number, because the mean of its divisors is an integer number (47760).
2689192 is an apocalyptic number.
689192 is a gapful number since it is divisible by the number (62) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 689192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764160).
689192 is an abundant number, since it is smaller than the sum of its proper divisors (839128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
689192 is a wasteful number, since it uses less digits than its factorization.
689192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 441 (or 437 counting only the distinct ones).
The product of its digits is 7776, while the sum is 35.
The square root of 689192 is about 830.1758849786. The cubic root of 689192 is about 88.3310533014.
It can be divided in two parts, 68919 and 2, that added together give a cube (68921 = 413).
The spelling of 689192 in words is "six hundred eighty-nine thousand, one hundred ninety-two".
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