Search a number
-
+
6013581 = 371991439
BaseRepresentation
bin10110111100001010001101
3102022112002020
4112330022031
53014413311
6332520353
7102054210
oct26741215
912275066
106013581
113438102
1220200b9
131327242
14b27777
157dbc06
hex5bc28d

6013581 has 16 divisors (see below), whose sum is σ = 9216000. Its totient is φ = 3416688.

The previous prime is 6013561. The next prime is 6013583. The reversal of 6013581 is 1853106.

6013581 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6013581 - 26 = 6013517 is a prime.

It is a super-2 number, since 2×60135812 = 72326312887122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6013583) 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, 3460 + ... + 4898.

It is an arithmetic number, because the mean of its divisors is an integer number (576000).

Almost surely, 26013581 is an apocalyptic number.

It is an amenable number.

6013581 is a deficient number, since it is larger than the sum of its proper divisors (3202419).

6013581 is a wasteful number, since it uses less digits than its factorization.

6013581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 6013581 is about 2452.2603858481. The cubic root of 6013581 is about 181.8490577186.

Adding to 6013581 its reverse (1853106), we get a palindrome (7866687).

The spelling of 6013581 in words is "six million, thirteen thousand, five hundred eighty-one".

Divisors: 1 3 7 21 199 597 1393 1439 4179 4317 10073 30219 286361 859083 2004527 6013581