Search a number
-
+
8068231 = 39720323
BaseRepresentation
bin11110110001110010000111
3120011220112101
4132301302013
54031140411
6444532531
7125402353
oct36616207
916156471
108068231
114610866
122851147
131896502
141100463
15a958c1
hex7b1c87

8068231 has 4 divisors (see below), whose sum is σ = 8088952. Its totient is φ = 8047512.

The previous prime is 8068223. The next prime is 8068241. The reversal of 8068231 is 1328608.

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 8068231 - 23 = 8068223 is a prime.

It is a super-2 number, since 2×80682312 = 130192702938722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8068231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8068241) 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, 9765 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (2022238).

Almost surely, 28068231 is an apocalyptic number.

8068231 is a deficient number, since it is larger than the sum of its proper divisors (20721).

8068231 is a wasteful number, since it uses less digits than its factorization.

8068231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20720.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8068231 is about 2840.4631664572. The cubic root of 8068231 is about 200.5669828003.

The spelling of 8068231 in words is "eight million, sixty-eight thousand, two hundred thirty-one".

Divisors: 1 397 20323 8068231