Search a number
-
+
16868752 = 242321993
BaseRepresentation
bin100000001011…
…0010110010000
31011202000120121
41000112112100
513304300002
61401320024
7263245015
oct100262620
934660517
1016868752
11958181a
125796014
133658114
14235170c
151733237
hex1016590

16868752 has 30 divisors (see below), whose sum is σ = 34183142. Its totient is φ = 8063616.

The previous prime is 16868701. The next prime is 16868759. The reversal of 16868752 is 25786861.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 1218816 = 3956^2 + 1104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16868699 and 16868708.

It is not an unprimeable number, because it can be changed into a prime (16868759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7468 + ... + 9460.

Almost surely, 216868752 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 16868752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17091571).

16868752 is an abundant number, since it is smaller than the sum of its proper divisors (17314390).

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

16868752 is a wasteful number, since it uses less digits than its factorization.

16868752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2018 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 16868752 is about 4107.1586285411. The cubic root of 16868752 is about 256.4647320057.

The spelling of 16868752 in words is "sixteen million, eight hundred sixty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 23 46 92 184 368 529 1058 1993 2116 3986 4232 7972 8464 15944 31888 45839 91678 183356 366712 733424 1054297 2108594 4217188 8434376 16868752