Search a number
-
+
20300200 = 2352101501
BaseRepresentation
bin100110101110…
…0000110101000
31102012100122021
41031130012220
520144101300
62003034224
7334356154
oct115340650
942170567
1020300200
1110505928
12696b974
134289c6b
1429a6064
151baed1a
hex135c1a8

20300200 has 24 divisors (see below), whose sum is σ = 47198430. Its totient is φ = 8120000.

The previous prime is 20300179. The next prime is 20300201. The reversal of 20300200 is 200302.

It can be written as a sum of positive squares in 3 ways, for example, as 15729156 + 4571044 = 3966^2 + 2138^2 .

It is not an unprimeable number, because it can be changed into a prime (20300201) 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 5 ways as a sum of consecutive naturals, for example, 50551 + ... + 50950.

Almost surely, 220300200 is an apocalyptic number.

20300200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20300200 is an abundant number, since it is smaller than the sum of its proper divisors (26898230).

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

20300200 is a wasteful number, since it uses less digits than its factorization.

20300200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101517 (or 101508 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 20300200 is about 4505.5743252109. The cubic root of 20300200 is about 272.7931362812.

Adding to 20300200 its reverse (200302), we get a palindrome (20500502).

The spelling of 20300200 in words is "twenty million, three hundred thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 101501 203002 406004 507505 812008 1015010 2030020 2537525 4060040 5075050 10150100 20300200