Search a number
-
+
103131203 = 731661719
BaseRepresentation
bin1100010010110…
…10100001000011
321012001121102012
412021122201003
5202400144303
614122243135
72361413030
oct611324103
9235047365
10103131203
115323aaaa
122a6564ab
131849baa6
14d9a8387
1590c25d8
hex625a843

103131203 has 16 divisors (see below), whose sum is σ = 122019840. Its totient is φ = 85298400.

The previous prime is 103131181. The next prime is 103131209. The reversal of 103131203 is 302131301.

It is a cyclic number.

It is not a de Polignac number, because 103131203 - 212 = 103127107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103131209) 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 15 ways as a sum of consecutive naturals, for example, 143078 + ... + 143796.

It is an arithmetic number, because the mean of its divisors is an integer number (7626240).

Almost surely, 2103131203 is an apocalyptic number.

103131203 is a deficient number, since it is larger than the sum of its proper divisors (18888637).

103131203 is an equidigital number, since it uses as much as digits as its factorization.

103131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 103131203 is about 10155.3534158098. The cubic root of 103131203 is about 468.9537660351.

Adding to 103131203 its reverse (302131301), we get a palindrome (405262504).

The spelling of 103131203 in words is "one hundred three million, one hundred thirty-one thousand, two hundred three".

Divisors: 1 7 31 217 661 719 4627 5033 20491 22289 143437 156023 475259 3326813 14733029 103131203