Search a number
-
+
268718241 = 31115153927
BaseRepresentation
bin10000000001000…
…101000010100001
3200201122022010110
4100001011002201
51022242440431
642355321533
76442032051
oct2001050241
9621568113
10268718241
11128758aa0
1275bb02a9
134389759c
142798d561
15188d0346
hex100450a1

268718241 has 16 divisors (see below), whose sum is σ = 393458688. Its totient is φ = 161778000.

The previous prime is 268718231. The next prime is 268718243. The reversal of 268718241 is 142817862.

It is a happy number.

It is not a de Polignac number, because 268718241 - 25 = 268718209 is a prime.

It is a super-2 number, since 2×2687182412 = 144418986092268162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 268718241.

It is not an unprimeable number, because it can be changed into a prime (268718243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21981 + ... + 31946.

It is an arithmetic number, because the mean of its divisors is an integer number (24591168).

Almost surely, 2268718241 is an apocalyptic number.

It is an amenable number.

268718241 is a deficient number, since it is larger than the sum of its proper divisors (124740447).

268718241 is a wasteful number, since it uses less digits than its factorization.

268718241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54092.

The product of its digits is 43008, while the sum is 39.

The square root of 268718241 is about 16392.6276417175. The cubic root of 268718241 is about 645.3060190799.

The spelling of 268718241 in words is "two hundred sixty-eight million, seven hundred eighteen thousand, two hundred forty-one".

Divisors: 1 3 11 33 151 453 1661 4983 53927 161781 593197 1779591 8142977 24428931 89572747 268718241