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52513285 = 5111735519
BaseRepresentation
bin1100100001010…
…0101000000101
310122210221200111
43020110220011
5101420411120
65113313021
71205232646
oct310245005
9118727614
1052513285
1127708010
1215705771
13ab58366
146d8d6cd
15492475a
hex3214a05

52513285 has 16 divisors (see below), whose sum is σ = 69154560. Its totient is φ = 37963840.

The previous prime is 52513273. The next prime is 52513291. The reversal of 52513285 is 58231525.

It is not a de Polignac number, because 52513285 - 213 = 52505093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6756 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (4322160).

Almost surely, 252513285 is an apocalyptic number.

52513285 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52513285 is a deficient number, since it is larger than the sum of its proper divisors (16641275).

52513285 is a wasteful number, since it uses less digits than its factorization.

52513285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708.

The product of its digits is 12000, while the sum is 31.

The square root of 52513285 is about 7246.6050672022. The cubic root of 52513285 is about 374.4752007193.

The spelling of 52513285 in words is "fifty-two million, five hundred thirteen thousand, two hundred eighty-five".

Divisors: 1 5 11 55 173 865 1903 5519 9515 27595 60709 303545 954787 4773935 10502657 52513285