Search a number
-
+
241808642 = 2793715233
BaseRepresentation
bin11100110100110…
…11010100000010
3121212000011002122
432122123110002
5443400334032
635554444242
75664224315
oct1632332402
9555004078
10241808642
11114549459
1268b93682
133b13514a
142418697c
1516367012
hexe69b502

241808642 has 8 divisors (see below), whose sum is σ = 362782476. Its totient is φ = 120881152.

The previous prime is 241808617. The next prime is 241808647. The reversal of 241808642 is 246808142.

241808642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 235898881 + 5909761 = 15359^2 + 2431^2 .

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

It is a super-3 number, since 3×2418086423 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (241808647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8258 + ... + 23490.

Almost surely, 2241808642 is an apocalyptic number.

241808642 is a deficient number, since it is larger than the sum of its proper divisors (120973834).

241808642 is a wasteful number, since it uses less digits than its factorization.

241808642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23172.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 241808642 is about 15550.1974907073. The cubic root of 241808642 is about 623.0036714381.

The spelling of 241808642 in words is "two hundred forty-one million, eight hundred eight thousand, six hundred forty-two".

Divisors: 1 2 7937 15233 15874 30466 120904321 241808642