Search a number
-
+
255220103 = 1983161839
BaseRepresentation
bin11110011011001…
…01100110000111
3122210020112011102
433031211212013
51010314020403
641154130315
76216222635
oct1715454607
9583215142
10255220103
11121079706
127158099b
1340b4c718
1425c78355
1517615b88
hexf365987

255220103 has 8 divisors (see below), whose sum is σ = 271891200. Its totient is φ = 238872888.

The previous prime is 255220081. The next prime is 255220109. The reversal of 255220103 is 301022552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255220103 - 28 = 255219847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255220109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79343 + ... + 82496.

It is an arithmetic number, because the mean of its divisors is an integer number (33986400).

Almost surely, 2255220103 is an apocalyptic number.

255220103 is a deficient number, since it is larger than the sum of its proper divisors (16671097).

255220103 is a wasteful number, since it uses less digits than its factorization.

255220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161941.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 255220103 is about 15975.6096284305. The cubic root of 255220103 is about 634.3149683719.

Adding to 255220103 its reverse (301022552), we get a palindrome (556242655).

The spelling of 255220103 in words is "two hundred fifty-five million, two hundred twenty thousand, one hundred three".

Divisors: 1 19 83 1577 161839 3074941 13432637 255220103