Search a number
-
+
8128236 = 2232923357
BaseRepresentation
bin11111000000011011101100
3120021221211210
4133000123230
54040100421
6450114420
7126042324
oct37003354
916257753
108128236
114651956
12287ba10
1318b790c
141118284
15aa8576
hex7c06ec

8128236 has 24 divisors (see below), whose sum is σ = 19620720. Its totient is φ = 2615872.

The previous prime is 8128217. The next prime is 8128243. The reversal of 8128236 is 6328218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11331 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (817530).

Almost surely, 28128236 is an apocalyptic number.

It is an amenable number.

8128236 is an abundant number, since it is smaller than the sum of its proper divisors (11492484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8128236 is a wasteful number, since it uses less digits than its factorization.

8128236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23393 (or 23391 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 8128236 is about 2851.0061381905. The cubic root of 8128236 is about 201.0629737584.

It can be divided in two parts, 81282 and 36, that added together give a palindrome (81318).

The spelling of 8128236 in words is "eight million, one hundred twenty-eight thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 23357 46714 70071 93428 140142 280284 677353 1354706 2032059 2709412 4064118 8128236