Search a number
-
+
24155142 = 23111392633
BaseRepresentation
bin101110000100…
…1010000000110
31200110012121220
41130021100012
522140431032
62221421210
7412213104
oct134112006
950405556
1024155142
11126a9130
12810a806
1350097ab
1432cac74
1521c212c
hex1709406

24155142 has 32 divisors (see below), whose sum is σ = 53101440. Its totient is φ = 7264320.

The previous prime is 24155141. The next prime is 24155161.

24155142 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24155141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7858 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (1659420).

Almost surely, 224155142 is an apocalyptic number.

24155142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 24155142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26550720).

24155142 is an abundant number, since it is smaller than the sum of its proper divisors (28946298).

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

24155142 is a wasteful number, since it uses less digits than its factorization.

24155142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788.

The product of its digits is 1600, while the sum is 24.

The square root of 24155142 is about 4914.7880930921. The cubic root of 24155142 is about 289.0701170450.

It can be divided in two parts, 2415 and 5142, that added together give a palindrome (7557).

The spelling of 24155142 in words is "twenty-four million, one hundred fifty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 139 278 417 834 1529 2633 3058 4587 5266 7899 9174 15798 28963 57926 86889 173778 365987 731974 1097961 2195922 4025857 8051714 12077571 24155142