Search a number
-
+
130394289 = 343464763
BaseRepresentation
bin1111100010110…
…10100010110001
3100002100201100010
413301122202301
5231340104124
620534445133
73142222164
oct761324261
9302321303
10130394289
1167671183
12378037a9
13210260ac
1413463adb
15b6aa529
hex7c5a8b1

130394289 has 4 divisors (see below), whose sum is σ = 173859056. Its totient is φ = 86929524.

The previous prime is 130394273. The next prime is 130394293. The reversal of 130394289 is 982493031.

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 not a de Polignac number, because 130394289 - 24 = 130394273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130394689) 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, 21732379 + ... + 21732384.

It is an arithmetic number, because the mean of its divisors is an integer number (43464764).

Almost surely, 2130394289 is an apocalyptic number.

It is an amenable number.

130394289 is a deficient number, since it is larger than the sum of its proper divisors (43464767).

130394289 is an equidigital number, since it uses as much as digits as its factorization.

130394289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43464766.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 130394289 is about 11419.0318766522. The cubic root of 130394289 is about 507.0913357774.

It can be divided in two parts, 1303942 and 89, that added together give a palindrome (1304031).

The spelling of 130394289 in words is "one hundred thirty million, three hundred ninety-four thousand, two hundred eighty-nine".

Divisors: 1 3 43464763 130394289