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53013155 = 513815587
BaseRepresentation
bin1100101000111…
…0101010100011
310200202100101012
43022032222203
5102032410110
65132131135
71212414206
oct312165243
9120670335
1053013155
1127a19628
1215906aab
13aca1a40
14707d93d
1549c2905
hex328eaa3

53013155 has 8 divisors (see below), whose sum is σ = 68509392. Its totient is φ = 39148128.

The previous prime is 53013151. The next prime is 53013167. The reversal of 53013155 is 55131035.

53013155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53013155 - 22 = 53013151 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 53013155.

It is not an unprimeable number, because it can be changed into a prime (53013151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407729 + ... + 407858.

It is an arithmetic number, because the mean of its divisors is an integer number (8563674).

Almost surely, 253013155 is an apocalyptic number.

53013155 is a deficient number, since it is larger than the sum of its proper divisors (15496237).

53013155 is a wasteful number, since it uses less digits than its factorization.

53013155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815605.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 53013155 is about 7281.0133223336. The cubic root of 53013155 is about 375.6596508003.

The spelling of 53013155 in words is "fifty-three million, thirteen thousand, one hundred fifty-five".

Divisors: 1 5 13 65 815587 4077935 10602631 53013155