Search a number
-
+
8236161 = 34101681
BaseRepresentation
bin11111011010110010000001
3120111102220000
4133122302001
54102024121
6452310213
7130002063
oct37326201
916442800
108236161
114715a4a
122912369
131924a8b
141145733
15aca526
hex7dac81

8236161 has 10 divisors (see below), whose sum is σ = 12303522. Its totient is φ = 5490720.

The previous prime is 8236157. The next prime is 8236169. The reversal of 8236161 is 1616328.

8236161 is digitally balanced in base 4, 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 only one way, i.e., 6533136 + 1703025 = 2556^2 + 1305^2 .

It is not a de Polignac number, because 8236161 - 22 = 8236157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8236169) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50760 + ... + 50921.

Almost surely, 28236161 is an apocalyptic number.

8236161 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8236161 is a deficient number, since it is larger than the sum of its proper divisors (4067361).

8236161 is a wasteful number, since it uses less digits than its factorization.

8236161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101693 (or 101684 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 8236161 is about 2869.8712514676. The cubic root of 8236161 is about 201.9489545234.

The spelling of 8236161 in words is "eight million, two hundred thirty-six thousand, one hundred sixty-one".

Divisors: 1 3 9 27 81 101681 305043 915129 2745387 8236161