Base | Representation |
---|---|
bin | 10101000100100110000 |
3 | 1022002011100 |
4 | 2220210300 |
5 | 134043410 |
6 | 22444400 |
7 | 5604030 |
oct | 2504460 |
9 | 1262140 |
10 | 690480 |
11 | 43184a |
12 | 293700 |
13 | 1b238b |
14 | 13d8c0 |
15 | d98c0 |
hex | a8930 |
690480 has 120 divisors (see below), whose sum is σ = 2669472. Its totient is φ = 156672.
The previous prime is 690467. The next prime is 690491. The reversal of 690480 is 84096.
It is a tau number, because it is divible by the number of its divisors (120).
It is a zygodrome in base 6.
It is an unprimeable number.
690480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4972 + ... + 5108.
2690480 is an apocalyptic number.
690480 is a gapful number since it is divisible by the number (60) 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 690480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334736).
690480 is an abundant number, since it is smaller than the sum of its proper divisors (1978992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
690480 is a wasteful number, since it uses less digits than its factorization.
690480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163 (or 154 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 690480 is about 830.9512621087. The cubic root of 690480 is about 88.3860450389.
The spelling of 690480 in words is "six hundred ninety thousand, four hundred eighty".
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