[go: up one dir, main page]

Search a number
-
+
3913830 = 232543487
BaseRepresentation
bin1110111011100001100110
321100211202200
432323201212
52000220310
6215515330
745160404
oct16734146
97324680
103913830
112233578
121388b46
13a7059b
1473c474
155249c0
hex3bb866

3913830 has 24 divisors (see below), whose sum is σ = 10176192. Its totient is φ = 1043664.

The previous prime is 3913807. The next prime is 3913837. The reversal of 3913830 is 383193.

It is a Curzon number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 3913794 and 3913803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3913837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21654 + ... + 21833.

It is an arithmetic number, because the mean of its divisors is an integer number (424008).

Almost surely, 23913830 is an apocalyptic number.

3913830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3913830 is an abundant number, since it is smaller than the sum of its proper divisors (6262362).

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

3913830 is a wasteful number, since it uses less digits than its factorization.

3913830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43500 (or 43497 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3913830 is about 1978.3402134112. The cubic root of 3913830 is about 157.5919342330.

The spelling of 3913830 in words is "three million, nine hundred thirteen thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 43487 86974 130461 217435 260922 391383 434870 652305 782766 1304610 1956915 3913830