Search a number
-
+
2854231 = 23124097
BaseRepresentation
bin1010111000110101010111
312101000021021
422320311113
51212313411
6141102011
733155242
oct12706527
95330237
102854231
11167a476
12b57907
1378c1c3
14544259
153b5a71
hex2b8d57

2854231 has 4 divisors (see below), whose sum is σ = 2978352. Its totient is φ = 2730112.

The previous prime is 2854223. The next prime is 2854253. The reversal of 2854231 is 1324582.

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

It is a cyclic number.

It is not a de Polignac number, because 2854231 - 23 = 2854223 is a prime.

It is a super-2 number, since 2×28542312 = 16293269202722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2854196 and 2854205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2854261) 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, 62026 + ... + 62071.

It is an arithmetic number, because the mean of its divisors is an integer number (744588).

22854231 is an apocalyptic number.

2854231 is the 1069-th centered pentagonal number.

2854231 is a deficient number, since it is larger than the sum of its proper divisors (124121).

2854231 is a wasteful number, since it uses less digits than its factorization.

2854231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124120.

The product of its digits is 1920, while the sum is 25.

The square root of 2854231 is about 1689.4469509280. The cubic root of 2854231 is about 141.8501195802.

The spelling of 2854231 in words is "two million, eight hundred fifty-four thousand, two hundred thirty-one".

Divisors: 1 23 124097 2854231