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130144453 = 301143223
BaseRepresentation
bin1111100000111…
…01100011000101
3100001220000121221
413300131203011
5231304110303
620525240341
73140131615
oct760354305
9301800557
10130144453
11675104aa
12377030b1
1320c6946a
14133daa45
15b65b4bd
hex7c1d8c5

130144453 has 4 divisors (see below), whose sum is σ = 130190688. Its totient is φ = 130098220.

The previous prime is 130144451. The next prime is 130144493. The reversal of 130144453 is 354441031.

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 130144453 - 21 = 130144451 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 (130144451) 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, 18601 + ... + 24622.

It is an arithmetic number, because the mean of its divisors is an integer number (32547672).

Almost surely, 2130144453 is an apocalyptic number.

It is an amenable number.

130144453 is a deficient number, since it is larger than the sum of its proper divisors (46235).

130144453 is an equidigital number, since it uses as much as digits as its factorization.

130144453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46234.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 130144453 is about 11408.0871753331. The cubic root of 130144453 is about 506.7672656799.

Adding to 130144453 its reverse (354441031), we get a palindrome (484585484).

It can be divided in two parts, 1301 and 44453, that added together give a palindrome (45754).

The spelling of 130144453 in words is "one hundred thirty million, one hundred forty-four thousand, four hundred fifty-three".

Divisors: 1 3011 43223 130144453