Search a number
-
+
268143092 = 22721368077
BaseRepresentation
bin11111111101110…
…00100111110100
3200200120002011122
433332320213310
51022121034332
642335123112
76434115200
oct1776704764
9620502148
10268143092
111283a5968
1275973498
1343725869
142787db00
1518819c12
hexffb89f4

268143092 has 18 divisors (see below), whose sum is σ = 545863122. Its totient is φ = 114918384.

The previous prime is 268143061. The next prime is 268143097. The reversal of 268143092 is 290341862.

It can be written as a sum of positive squares in only one way, i.e., 254274916 + 13868176 = 15946^2 + 3724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268143097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 683843 + ... + 684234.

It is an arithmetic number, because the mean of its divisors is an integer number (30325729).

Almost surely, 2268143092 is an apocalyptic number.

It is an amenable number.

268143092 is an abundant number, since it is smaller than the sum of its proper divisors (277720030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268143092 is a wasteful number, since it uses less digits than its factorization.

268143092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368095 (or 1368086 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 268143092 is about 16375.0753280710. The cubic root of 268143092 is about 644.8452983147.

The spelling of 268143092 in words is "two hundred sixty-eight million, one hundred forty-three thousand, ninety-two".

Divisors: 1 2 4 7 14 28 49 98 196 1368077 2736154 5472308 9576539 19153078 38306156 67035773 134071546 268143092