Search a number
-
+
103103143 = 1113977433
BaseRepresentation
bin1100010010100…
…11101010100111
321012000011220221
412021103222213
5202343300033
614121505211
72361235153
oct611235247
9235004827
10103103143
1153220a10
122a642207
131848c0a0
14d99c063
1590b912d
hex6253aa7

103103143 has 16 divisors (see below), whose sum is σ = 122393376. Its totient is φ = 85616640.

The previous prime is 103103141. The next prime is 103103183. The reversal of 103103143 is 341301301.

It is a cyclic number.

It is not a de Polignac number, because 103103143 - 21 = 103103141 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 (103103141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10155 + ... + 17587.

It is an arithmetic number, because the mean of its divisors is an integer number (7649586).

Almost surely, 2103103143 is an apocalyptic number.

103103143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

103103143 is a deficient number, since it is larger than the sum of its proper divisors (19290233).

103103143 is a wasteful number, since it uses less digits than its factorization.

103103143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 103103143 is about 10153.9717844792. The cubic root of 103103143 is about 468.9112311026.

Adding to 103103143 its reverse (341301301), we get a palindrome (444404444).

The spelling of 103103143 in words is "one hundred three million, one hundred three thousand, one hundred forty-three".

Divisors: 1 11 13 97 143 1067 1261 7433 13871 81763 96629 721001 1062919 7931011 9373013 103103143