Search a number
-
+
231005114 = 2115502557
BaseRepresentation
bin11011100010011…
…01101110111010
3121002200021102222
431301031232322
5433114130424
634531124042
75503340204
oct1561155672
9532607388
10231005114
1110943a61a
1265443622
1338b21922
1422973774
1515430e5e
hexdc4dbba

231005114 has 4 divisors (see below), whose sum is σ = 346507674. Its totient is φ = 115502556.

The previous prime is 231005101. The next prime is 231005147. The reversal of 231005114 is 411500132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 196981225 + 34023889 = 14035^2 + 5833^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231005092 and 231005101.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 57751277 + ... + 57751280.

Almost surely, 2231005114 is an apocalyptic number.

231005114 is a deficient number, since it is larger than the sum of its proper divisors (115502560).

231005114 is a wasteful number, since it uses less digits than its factorization.

231005114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115502559.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 231005114 is about 15198.8523908879. The cubic root of 231005114 is about 613.5837718466.

Adding to 231005114 its reverse (411500132), we get a palindrome (642505246).

The spelling of 231005114 in words is "two hundred thirty-one million, five thousand, one hundred fourteen".

Divisors: 1 2 115502557 231005114