Search a number
-
+
130646047 = 767278563
BaseRepresentation
bin1111100100110…
…00000000011111
3100002211111200111
413302120000133
5231421133142
620544110451
73144321160
oct762300037
9302744614
10130646047
1167823344
1237905427
13210b386c
14134cb767
15b709e17
hex7c9801f

130646047 has 8 divisors (see below), whose sum is σ = 151538816. Its totient is φ = 110310552.

The previous prime is 130646023. The next prime is 130646051. The reversal of 130646047 is 740646031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130646047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130646057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138813 + ... + 139750.

It is an arithmetic number, because the mean of its divisors is an integer number (18942352).

Almost surely, 2130646047 is an apocalyptic number.

130646047 is a deficient number, since it is larger than the sum of its proper divisors (20892769).

130646047 is an equidigital number, since it uses as much as digits as its factorization.

130646047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278637.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 130646047 is about 11430.0501748680. The cubic root of 130646047 is about 507.4174804962.

The spelling of 130646047 in words is "one hundred thirty million, six hundred forty-six thousand, forty-seven".

Divisors: 1 7 67 469 278563 1949941 18663721 130646047