Search a number
-
+
20026832 = 2471631097
BaseRepresentation
bin100110001100…
…1010111010000
31101200110122112
41030121113100
520111324312
61553124452
7332140160
oct114312720
941613575
1020026832
1110339501
126859728
1341c26c7
1429345a0
151b58d22
hex13195d0

20026832 has 40 divisors (see below), whose sum is σ = 44657856. Its totient is φ = 8522496.

The previous prime is 20026829. The next prime is 20026847. The reversal of 20026832 is 23862002.

It is a junction number, because it is equal to n+sod(n) for n = 20026798 and 20026807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17708 + ... + 18804.

Almost surely, 220026832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20026832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22328928).

20026832 is an abundant number, since it is smaller than the sum of its proper divisors (24631024).

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

20026832 is a wasteful number, since it uses less digits than its factorization.

20026832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20026832 is about 4475.1348583032. The cubic root of 20026832 is about 271.5630961707.

Adding to 20026832 its reverse (23862002), we get a palindrome (43888834).

The spelling of 20026832 in words is "twenty million, twenty-six thousand, eight hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 163 326 652 1097 1141 1304 2194 2282 2608 4388 4564 7679 8776 9128 15358 17552 18256 30716 61432 122864 178811 357622 715244 1251677 1430488 2503354 2860976 5006708 10013416 20026832