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53115101 = 134085777
BaseRepresentation
bin1100101010011…
…1100011011101
310200221112012222
43022213203131
5102044140401
65134235125
71213320344
oct312474335
9120845188
1053115101
1127a89186
1215955aa5
13b009270
1470a8b5b
1549e2c1b
hex32a78dd

53115101 has 4 divisors (see below), whose sum is σ = 57200892. Its totient is φ = 49029312.

The previous prime is 53115077. The next prime is 53115107. The reversal of 53115101 is 10151135.

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 28622500 + 24492601 = 5350^2 + 4949^2 .

It is a cyclic number.

It is not a de Polignac number, because 53115101 - 210 = 53114077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53115101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115107) 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, 2042876 + ... + 2042901.

It is an arithmetic number, because the mean of its divisors is an integer number (14300223).

Almost surely, 253115101 is an apocalyptic number.

It is an amenable number.

53115101 is a deficient number, since it is larger than the sum of its proper divisors (4085791).

53115101 is a wasteful number, since it uses less digits than its factorization.

53115101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085790.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 53115101 is about 7288.0107711227. The cubic root of 53115101 is about 375.9002984670.

Adding to 53115101 its reverse (10151135), we get a palindrome (63266236).

The spelling of 53115101 in words is "fifty-three million, one hundred fifteen thousand, one hundred one".

Divisors: 1 13 4085777 53115101