Search a number
-
+
130460221 = 199655579
BaseRepresentation
bin1111100011010…
…10101000111101
3100002111001210001
413301222220331
5231344211341
620540114301
73142615333
oct761525075
9302431701
10130460221
1167706771
1237835991
132104a0c8
141347db53
15b6bed31
hex7c6aa3d

130460221 has 4 divisors (see below), whose sum is σ = 131116000. Its totient is φ = 129804444.

The previous prime is 130460219. The next prime is 130460243. The reversal of 130460221 is 122064031.

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 a cyclic number.

It is not a de Polignac number, because 130460221 - 21 = 130460219 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 (130464221) 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, 327591 + ... + 327988.

It is an arithmetic number, because the mean of its divisors is an integer number (32779000).

Almost surely, 2130460221 is an apocalyptic number.

It is an amenable number.

130460221 is a deficient number, since it is larger than the sum of its proper divisors (655779).

130460221 is an equidigital number, since it uses as much as digits as its factorization.

130460221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655778.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 130460221 is about 11421.9184465658. The cubic root of 130460221 is about 507.1767891939.

The spelling of 130460221 in words is "one hundred thirty million, four hundred sixty thousand, two hundred twenty-one".

Divisors: 1 199 655579 130460221