Search a number
-
+
268052081 = 11101241271
BaseRepresentation
bin11111111101000…
…10011001110001
3200200101110022212
433332202121301
51022110131311
642333141505
76433255643
oct1776423161
9620343285
10268052081
11128343550
127592a895
13436c32cb
1427858893
15187ecc8b
hexffa2671

268052081 has 8 divisors (see below), whose sum is σ = 295316928. Its totient is φ = 241270000.

The previous prime is 268052053. The next prime is 268052089. The reversal of 268052081 is 180250862.

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 268052081 - 214 = 268035697 is a prime.

It is a super-2 number, since 2×2680520812 = 143703836256861122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268052089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119525 + ... + 121746.

It is an arithmetic number, because the mean of its divisors is an integer number (36914616).

Almost surely, 2268052081 is an apocalyptic number.

It is an amenable number.

268052081 is a deficient number, since it is larger than the sum of its proper divisors (27264847).

268052081 is a wasteful number, since it uses less digits than its factorization.

268052081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241383.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 268052081 is about 16372.2961431804. The cubic root of 268052081 is about 644.7723339681.

The spelling of 268052081 in words is "two hundred sixty-eight million, fifty-two thousand, eighty-one".

Divisors: 1 11 101 1111 241271 2653981 24368371 268052081