Search a number
-
+
1240231103 = 10913186857
BaseRepresentation
bin100100111101100…
…0110110010111111
310012102201021020022
41021323012302333
510014444343403
6323022242355
742506535056
oct11173066277
93172637208
101240231103
11587094a91
122a74263bb
13169c3c277
14baa0339d
1573d35d38
hex49ec6cbf

1240231103 has 8 divisors (see below), whose sum is σ = 1261178160. Its totient is φ = 1219458240.

The previous prime is 1240231087. The next prime is 1240231127. The reversal of 1240231103 is 3011320421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240231103 - 24 = 1240231087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240231133) 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, 29150 + ... + 57707.

It is an arithmetic number, because the mean of its divisors is an integer number (157647270).

Almost surely, 21240231103 is an apocalyptic number.

1240231103 is a deficient number, since it is larger than the sum of its proper divisors (20947057).

1240231103 is a wasteful number, since it uses less digits than its factorization.

1240231103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87097.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1240231103 is about 35216.9150125334. The cubic root of 1240231103 is about 1074.4038094560.

Adding to 1240231103 its reverse (3011320421), we get a palindrome (4251551524).

The spelling of 1240231103 in words is "one billion, two hundred forty million, two hundred thirty-one thousand, one hundred three".

Divisors: 1 109 131 14279 86857 9467413 11378267 1240231103