Search a number
-
+
130795379 = 11134389239
BaseRepresentation
bin1111100101111…
…00011101110011
3100010010002112022
413302330131303
5231440423004
620551222055
73145512431
oct762743563
9303102468
10130795379
1167915560
123797792b
1321136820
1413529d51
15b7392be
hex7cbc773

130795379 has 32 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 105557760.

The previous prime is 130795369. The next prime is 130795391. The reversal of 130795379 is 973597031.

It is not a de Polignac number, because 130795379 - 220 = 129746803 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (130795309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547142 + ... + 547380.

It is an arithmetic number, because the mean of its divisors is an integer number (4989600).

Almost surely, 2130795379 is an apocalyptic number.

130795379 is a deficient number, since it is larger than the sum of its proper divisors (28871821).

130795379 is a wasteful number, since it uses less digits than its factorization.

130795379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 130795379 is about 11436.5807390146. The cubic root of 130795379 is about 507.6107375619.

The spelling of 130795379 in words is "one hundred thirty million, seven hundred ninety-five thousand, three hundred seventy-nine".

Divisors: 1 11 13 43 89 143 239 473 559 979 1157 2629 3107 3827 6149 10277 12727 21271 34177 42097 49751 113047 133601 233981 276523 547261 914653 1469611 3041753 10061183 11890489 130795379