Search a number
-
+
240000231 = 3671194031
BaseRepresentation
bin11100100111000…
…01110011100111
3121201121021102110
432103201303213
5442420001411
635452012103
75642653062
oct1623416347
9551537373
10240000231
111135237a9
1268461033
133a950c93
1423c358d9
151610b2a6
hexe4e1ce7

240000231 has 8 divisors (see below), whose sum is σ = 324776704. Its totient is φ = 157611960.

The previous prime is 240000181. The next prime is 240000247. The reversal of 240000231 is 132000042.

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

It is not a de Polignac number, because 240000231 - 217 = 239869159 is a prime.

It is a super-2 number, since 2×2400002312 = 115200221760106722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240000281) 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, 596815 + ... + 597216.

It is an arithmetic number, because the mean of its divisors is an integer number (40597088).

Almost surely, 2240000231 is an apocalyptic number.

240000231 is a deficient number, since it is larger than the sum of its proper divisors (84776473).

240000231 is a wasteful number, since it uses less digits than its factorization.

240000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194101.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 240000231 is about 15491.9408403208. The cubic root of 240000231 is about 621.4467005715.

Adding to 240000231 its reverse (132000042), we get a palindrome (372000273).

The spelling of 240000231 in words is "two hundred forty million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 3 67 201 1194031 3582093 80000077 240000231