Search a number
-
+
3808540 = 225191997
BaseRepresentation
bin1110100001110100011100
321011111100001
432201310130
51433333130
6213344044
744241421
oct16416434
97144301
103808540
11217145a
121338024
13a34698
14711d48
155036ca
hex3a1d1c

3808540 has 24 divisors (see below), whose sum is σ = 8047872. Its totient is φ = 1513920.

The previous prime is 3808513. The next prime is 3808549. The reversal of 3808540 is 458083.

3808540 = 352 + 362 + ... + 2252.

3808540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3808499 and 3808508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3322 + ... + 4318.

It is an arithmetic number, because the mean of its divisors is an integer number (335328).

Almost surely, 23808540 is an apocalyptic number.

It is an amenable number.

3808540 is an abundant number, since it is smaller than the sum of its proper divisors (4239332).

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

3808540 is a wasteful number, since it uses less digits than its factorization.

3808540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 3808540 is about 1951.5481034297. The cubic root of 3808540 is about 156.1658875287.

The spelling of 3808540 in words is "three million, eight hundred eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 191 382 764 955 997 1910 1994 3820 3988 4985 9970 19940 190427 380854 761708 952135 1904270 3808540