[go: up one dir, main page]

Search a number
-
+
103207105 = 5181114041
BaseRepresentation
bin1100010011011…
…01000011000001
321012012110112101
412021231003001
5202410111410
614124030401
72362150231
oct611550301
9235173471
10103207105
1153292031
122a692401
13184c74c1
14d9c7cc1
1590d9d3a
hex626d0c1

103207105 has 8 divisors (see below), whose sum is σ = 124533864. Its totient is φ = 82108800.

The previous prime is 103207103. The next prime is 103207121. The reversal of 103207105 is 501702301.

It can be written as a sum of positive squares in 4 ways, for example, as 6066369 + 97140736 = 2463^2 + 9856^2 .

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

It is not a de Polignac number, because 103207105 - 21 = 103207103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103207103) 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 7 ways as a sum of consecutive naturals, for example, 56116 + ... + 57925.

It is an arithmetic number, because the mean of its divisors is an integer number (15566733).

Almost surely, 2103207105 is an apocalyptic number.

It is an amenable number.

103207105 is a deficient number, since it is larger than the sum of its proper divisors (21326759).

103207105 is a wasteful number, since it uses less digits than its factorization.

103207105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114227.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 103207105 is about 10159.0897722188. The cubic root of 103207105 is about 469.0687839251.

Adding to 103207105 its reverse (501702301), we get a palindrome (604909406).

The spelling of 103207105 in words is "one hundred three million, two hundred seven thousand, one hundred five".

Divisors: 1 5 181 905 114041 570205 20641421 103207105