Search a number
-
+
165130107 = 355043369
BaseRepresentation
bin10011101011110…
…10111101111011
3102111201110220220
421311322331323
5314233130412
624215151123
74043403612
oct1165727573
9374643826
10165130107
118523676a
12473754a3
132829882c
1417d06879
15e76c68c
hex9d7af7b

165130107 has 4 divisors (see below), whose sum is σ = 220173480. Its totient is φ = 110086736.

The previous prime is 165130103. The next prime is 165130109. The reversal of 165130107 is 701031561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701031561 = 3233677187.

It is a cyclic number.

It is not a de Polignac number, because 165130107 - 22 = 165130103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165130103) 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, 27521682 + ... + 27521687.

It is an arithmetic number, because the mean of its divisors is an integer number (55043370).

Almost surely, 2165130107 is an apocalyptic number.

165130107 is a deficient number, since it is larger than the sum of its proper divisors (55043373).

165130107 is an equidigital number, since it uses as much as digits as its factorization.

165130107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55043372.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 165130107 is about 12850.2959888090. The cubic root of 165130107 is about 548.6247813525.

Adding to 165130107 its reverse (701031561), we get a palindrome (866161668).

The spelling of 165130107 in words is "one hundred sixty-five million, one hundred thirty thousand, one hundred seven".

Divisors: 1 3 55043369 165130107