Base | Representation |
---|---|
bin | 1100000010100… |
… | …1011010000010 |
3 | 10112000201200200 |
4 | 3000221122002 |
5 | 100412020000 |
6 | 5002230030 |
7 | 1152152652 |
oct | 300513202 |
9 | 115021620 |
10 | 50501250 |
11 | 26563378 |
12 | 14ab5316 |
13 | a6025c7 |
14 | 69c8362 |
15 | 4678500 |
hex | 3029682 |
50501250 has 90 divisors (see below), whose sum is σ = 138801663. Its totient is φ = 13266000.
The previous prime is 50501233. The next prime is 50501251. The reversal of 50501250 is 5210505.
It can be written as a sum of positive squares in 3 ways, for example, as 11675889 + 38825361 = 3417^2 + 6231^2 .
It is a tau number, because it is divible by the number of its divisors (90).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=5025.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an alternating number because its digits alternate between odd and even.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (50501251) by changing a digit.
It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 753717 + ... + 753783.
Almost surely, 250501250 is an apocalyptic number.
50501250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 50501250
50501250 is an abundant number, since it is smaller than the sum of its proper divisors (88300413).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
50501250 is an equidigital number, since it uses as much as digits as its factorization.
50501250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162 (or 77 counting only the distinct ones).
The product of its (nonzero) digits is 250, while the sum is 18.
The square root of 50501250 is about 7106.4231509248. The cubic root of 50501250 is about 369.6301392890.
Multiplying 50501250 by its sum of digits (18), we get a square (909022500 = 301502).
50501250 divided by its sum of digits (18) gives a square (2805625 = 16752).
Adding to 50501250 its reverse (5210505), we get a palindrome (55711755).
The spelling of 50501250 in words is "fifty million, five hundred one thousand, two hundred fifty".
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