Search a number
-
+
2040540325 = 52261731189
BaseRepresentation
bin111100110100000…
…0010110010100101
312021012122012002121
41321220002302211
513134334242300
6534251505541
7101365210105
oct17150026245
95235565077
102040540325
1195791716a
1248b4582b1
1326699cb15
1415500d205
15be21e81a
hex79a02ca5

2040540325 has 12 divisors (see below), whose sum is σ = 2531318020. Its totient is φ = 1631756160.

The previous prime is 2040540323. The next prime is 2040540329. The reversal of 2040540325 is 5230450402.

It can be written as a sum of positive squares in 6 ways, for example, as 10407076 + 2030133249 = 3226^2 + 45057^2 .

It is not a de Polignac number, because 2040540325 - 21 = 2040540323 is a prime.

It is a super-2 number, since 2×20405403252 = 8327609635902211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 2040540325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040540323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49831 + ... + 81019.

Almost surely, 22040540325 is an apocalyptic number.

2040540325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2040540325 is a deficient number, since it is larger than the sum of its proper divisors (490777695).

2040540325 is a wasteful number, since it uses less digits than its factorization.

2040540325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33816 (or 33811 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2040540325 is about 45172.3402648125. The cubic root of 2040540325 is about 1268.3771042910.

Adding to 2040540325 its reverse (5230450402), we get a palindrome (7270990727).

The spelling of 2040540325 in words is "two billion, forty million, five hundred forty thousand, three hundred twenty-five".

Divisors: 1 5 25 2617 13085 31189 65425 155945 779725 81621613 408108065 2040540325