Search a number
-
+
130460087 = 193675959
BaseRepresentation
bin1111100011010…
…10100110110111
3100002111001121002
413301222212313
5231344210322
620540113515
73142615052
oct761524667
9302431532
10130460087
116770665a
123783589b
132104a024
141347da99
15b6bec92
hex7c6a9b7

130460087 has 4 divisors (see below), whose sum is σ = 131136240. Its totient is φ = 129783936.

The previous prime is 130460063. The next prime is 130460101. The reversal of 130460087 is 780064031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780064031 = 3877201203.

It is a cyclic number.

It is not a de Polignac number, because 130460087 - 28 = 130459831 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 (130460017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337787 + ... + 338172.

It is an arithmetic number, because the mean of its divisors is an integer number (32784060).

Almost surely, 2130460087 is an apocalyptic number.

130460087 is a deficient number, since it is larger than the sum of its proper divisors (676153).

130460087 is an equidigital number, since it uses as much as digits as its factorization.

130460087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676152.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 130460087 is about 11421.9125806495. The cubic root of 130460087 is about 507.1766155478.

The spelling of 130460087 in words is "one hundred thirty million, four hundred sixty thousand, eighty-seven".

Divisors: 1 193 675959 130460087