Search a number
-
+
1243082230 = 25139562171
BaseRepresentation
bin100101000010111…
…1110110111110110
310012122002010020121
41022011332313312
510021212112410
6323203322154
742543011305
oct11205766766
93178063217
101243082230
11588762095
122a838035a
1316a6c9c20
14bb14643c
15741ea9da
hex4a17edf6

1243082230 has 16 divisors (see below), whose sum is σ = 2409667344. Its totient is φ = 458984160.

The previous prime is 1243082221. The next prime is 1243082231. The reversal of 1243082230 is 322803421.

It is a junction number, because it is equal to n+sod(n) for n = 1243082195 and 1243082204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243082231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4780956 + ... + 4781215.

It is an arithmetic number, because the mean of its divisors is an integer number (150604209).

Almost surely, 21243082230 is an apocalyptic number.

1243082230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243082230 is a deficient number, since it is larger than the sum of its proper divisors (1166585114).

1243082230 is a wasteful number, since it uses less digits than its factorization.

1243082230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9562191.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1243082230 is about 35257.3712860162. The cubic root of 1243082230 is about 1075.2264833785.

Adding to 1243082230 its reverse (322803421), we get a palindrome (1565885651).

The spelling of 1243082230 in words is "one billion, two hundred forty-three million, eighty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 9562171 19124342 47810855 95621710 124308223 248616446 621541115 1243082230