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53130313 = 128341411
BaseRepresentation
bin1100101010101…
…1010001001001
310200222022002101
43022223101021
5102100132223
65134433401
71213412605
oct312532111
9120868071
1053130313
1127a99655
1215962861
13b013172
1470b0505
1549e74ad
hex32ab449

53130313 has 4 divisors (see below), whose sum is σ = 53173008. Its totient is φ = 53087620.

The previous prime is 53130281. The next prime is 53130317. The reversal of 53130313 is 31303135.

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 53130313 - 25 = 53130281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53130317) 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, 19423 + ... + 21988.

It is an arithmetic number, because the mean of its divisors is an integer number (13293252).

Almost surely, 253130313 is an apocalyptic number.

It is an amenable number.

53130313 is a deficient number, since it is larger than the sum of its proper divisors (42695).

53130313 is a wasteful number, since it uses less digits than its factorization.

53130313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42694.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 53130313 is about 7289.0543282376. The cubic root of 53130313 is about 375.9361806012.

Adding to 53130313 its reverse (31303135), we get a palindrome (84433448).

The spelling of 53130313 in words is "fifty-three million, one hundred thirty thousand, three hundred thirteen".

Divisors: 1 1283 41411 53130313