Search a number
-
+
105130613 = 715018659
BaseRepresentation
bin1100100010000…
…10101001110101
321022211012002102
412101002221311
5203403134423
614233151445
72414411150
oct621025165
9238735072
10105130613
1154386205
122b25b585
1318a1bb83
14dd68c97
159369c28
hex6442a75

105130613 has 4 divisors (see below), whose sum is σ = 120149280. Its totient is φ = 90111948.

The previous prime is 105130607. The next prime is 105130643. The reversal of 105130613 is 316031501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105130613 - 26 = 105130549 is a prime.

It is a super-2 number, since 2×1051306132 = 22104891579511538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105130643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7509323 + ... + 7509336.

It is an arithmetic number, because the mean of its divisors is an integer number (30037320).

Almost surely, 2105130613 is an apocalyptic number.

It is an amenable number.

105130613 is a deficient number, since it is larger than the sum of its proper divisors (15018667).

105130613 is an equidigital number, since it uses as much as digits as its factorization.

105130613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15018666.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 105130613 is about 10253.3220470246. The cubic root of 105130613 is about 471.9649335363.

The spelling of 105130613 in words is "one hundred five million, one hundred thirty thousand, six hundred thirteen".

Divisors: 1 7 15018659 105130613