Search a number
-
+
103956905 = 5137732069
BaseRepresentation
bin1100011001001…
…00000110101001
321020121120001202
412030210012221
5203103110110
614152053545
72401422233
oct614440651
9236546052
10103956905
11537543a8
122a9942b5
13186ca880
14db41253
1591d70a5
hex63241a9

103956905 has 16 divisors (see below), whose sum is σ = 134583120. Its totient is φ = 76631808.

The previous prime is 103956901. The next prime is 103956917. The reversal of 103956905 is 509659301.

It can be written as a sum of positive squares in 8 ways, for example, as 45265984 + 58690921 = 6728^2 + 7661^2 .

It is a cyclic number.

It is not a de Polignac number, because 103956905 - 22 = 103956901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103956901) 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, 49211 + ... + 51279.

It is an arithmetic number, because the mean of its divisors is an integer number (8411445).

Almost surely, 2103956905 is an apocalyptic number.

It is an amenable number.

103956905 is a deficient number, since it is larger than the sum of its proper divisors (30626215).

103956905 is a wasteful number, since it uses less digits than its factorization.

103956905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 103956905 is about 10195.9259020454. The cubic root of 103956905 is about 470.2019729493.

The spelling of 103956905 in words is "one hundred three million, nine hundred fifty-six thousand, nine hundred five".

Divisors: 1 5 13 65 773 2069 3865 10049 10345 26897 50245 134485 1599337 7996685 20791381 103956905