Search a number
-
+
130221053 = 532457001
BaseRepresentation
bin1111100001100…
…00001111111101
3100002000220200222
413300300033331
5231314033203
620531031125
73140601134
oct760601775
9302026628
10130221053
1167563006
123773b4a5
1320c952a1
141341a91b
15b674038
hex7c303fd

130221053 has 4 divisors (see below), whose sum is σ = 132678108. Its totient is φ = 127764000.

The previous prime is 130221001. The next prime is 130221097. The reversal of 130221053 is 350122031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107391769 + 22829284 = 10363^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 130221053 - 210 = 130220029 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 (130221353) 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, 1228448 + ... + 1228553.

It is an arithmetic number, because the mean of its divisors is an integer number (33169527).

Almost surely, 2130221053 is an apocalyptic number.

It is an amenable number.

130221053 is a deficient number, since it is larger than the sum of its proper divisors (2457055).

130221053 is an equidigital number, since it uses as much as digits as its factorization.

130221053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457054.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130221053 is about 11411.4439489488. The cubic root of 130221053 is about 506.8666699912.

Adding to 130221053 its reverse (350122031), we get a palindrome (480343084).

The spelling of 130221053 in words is "one hundred thirty million, two hundred twenty-one thousand, fifty-three".

Divisors: 1 53 2457001 130221053