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53430313 = 1011932741
BaseRepresentation
bin1100101111010…
…0100000101001
310201112112121111
43023310200221
5102134232223
65145110321
71216102336
oct313644051
9121475544
1053430313
1128183a92
1215a883a1
13b0b9891
14714b98d
154a5630d
hex32f4829

53430313 has 8 divisors (see below), whose sum is σ = 54258696. Its totient is φ = 52608000.

The previous prime is 53430301. The next prime is 53430319. The reversal of 53430313 is 31303435.

It can be written as a sum of positive squares in 4 ways, for example, as 9909904 + 43520409 = 3148^2 + 6597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53430313 - 25 = 53430281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53430319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18123 + ... + 20863.

It is an arithmetic number, because the mean of its divisors is an integer number (6782337).

Almost surely, 253430313 is an apocalyptic number.

It is an amenable number.

53430313 is a deficient number, since it is larger than the sum of its proper divisors (828383).

53430313 is a wasteful number, since it uses less digits than its factorization.

53430313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 53430313 is about 7309.6041616492. The cubic root of 53430313 is about 376.6424268039.

Adding to 53430313 its reverse (31303435), we get a palindrome (84733748).

The spelling of 53430313 in words is "fifty-three million, four hundred thirty thousand, three hundred thirteen".

Divisors: 1 101 193 2741 19493 276841 529013 53430313