Base | Representation |
---|---|
bin | 11101111110011… |
… | …000000011000001 |
3 | 1022001021111100002 |
4 | 131332120003001 |
5 | 2012220000224 |
6 | 121522405345 |
7 | 15314333420 |
oct | 3576300301 |
9 | 1261244302 |
10 | 502890689 |
11 | 238961244 |
12 | 120500855 |
13 | 80257a72 |
14 | 4ab092b7 |
15 | 2e2399ae |
hex | 1df980c1 |
502890689 has 24 divisors (see below), whose sum is σ = 617037120. Its totient is φ = 401321952.
The previous prime is 502890683. The next prime is 502890701. The reversal of 502890689 is 986098205.
It is not a de Polignac number, because 502890689 - 28 = 502890433 is a prime.
It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (502890683) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147407 + ... + 150779.
It is an arithmetic number, because the mean of its divisors is an integer number (25709880).
Almost surely, 2502890689 is an apocalyptic number.
502890689 is a gapful number since it is divisible by the number (59) formed by its first and last digit.
It is an amenable number.
502890689 is a deficient number, since it is larger than the sum of its proper divisors (114146431).
502890689 is a wasteful number, since it uses less digits than its factorization.
502890689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3477 (or 3458 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 47.
The square root of 502890689 is about 22425.2243912965. The cubic root of 502890689 is about 795.2271486785.
The spelling of 502890689 in words is "five hundred two million, eight hundred ninety thousand, six hundred eighty-nine".
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