Search a number
-
+
2538486 = 233291621
BaseRepresentation
bin1001101011101111110110
311202222011000
421223233312
51122212421
6130224130
730401556
oct11535766
94688130
102538486
111484225
12a25046
136ab582
144a1166
15352226
hex26bbf6

2538486 has 32 divisors (see below), whose sum is σ = 5839200. Its totient is φ = 816480.

The previous prime is 2538479. The next prime is 2538493. The reversal of 2538486 is 6848352.

It is an interprime number because it is at equal distance from previous prime (2538479) and next prime (2538493).

It is a super-3 number, since 3×25384863 = 49073334887589405768, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2538486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756 + ... + 2376.

It is an arithmetic number, because the mean of its divisors is an integer number (182475).

22538486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2538486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2919600).

2538486 is an abundant number, since it is smaller than the sum of its proper divisors (3300714).

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

2538486 is a wasteful number, since it uses less digits than its factorization.

2538486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1655 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 2538486 is about 1593.2626902052. The cubic root of 2538486 is about 136.4137844647.

The spelling of 2538486 in words is "two million, five hundred thirty-eight thousand, four hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 29 54 58 87 174 261 522 783 1566 1621 3242 4863 9726 14589 29178 43767 47009 87534 94018 141027 282054 423081 846162 1269243 2538486