Search a number
-
+
130005155 = 573714433
BaseRepresentation
bin1111011111110…
…11100010100011
3100001121221112202
413233323202203
5231240131110
620522243415
73136011530
oct757734243
9301557482
10130005155
1167425885
123765656b
1320c1ac37
14133a1d87
15b6300a5
hex7bfb8a3

130005155 has 8 divisors (see below), whose sum is σ = 178292832. Its totient is φ = 89146368.

The previous prime is 130005151. The next prime is 130005157. The reversal of 130005155 is 551500031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 130005155 - 22 = 130005151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130005151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857182 + ... + 1857251.

It is an arithmetic number, because the mean of its divisors is an integer number (22286604).

Almost surely, 2130005155 is an apocalyptic number.

130005155 is a deficient number, since it is larger than the sum of its proper divisors (48287677).

130005155 is an equidigital number, since it uses as much as digits as its factorization.

130005155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714445.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 130005155 is about 11401.9803104548. The cubic root of 130005155 is about 506.5863977661.

Adding to 130005155 its reverse (551500031), we get a palindrome (681505186).

The spelling of 130005155 in words is "one hundred thirty million, five thousand, one hundred fifty-five".

Divisors: 1 5 7 35 3714433 18572165 26001031 130005155