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52850381 = 1931531693
BaseRepresentation
bin1100100110011…
…0111011001101
310200110002002112
43021212323031
5102012203011
65124433405
71211135513
oct311467315
9120402075
1052850381
1127918301
1215848865
13ac4591c
14703a4b3
15498e58b
hex3266ecd

52850381 has 16 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 47511360.

The previous prime is 52850359. The next prime is 52850401. The reversal of 52850381 is 18305825.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52850381 is a prime.

It is a super-2 number, since 2×528503812 = 5586325543690322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52850351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30371 + ... + 32063.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 252850381 is an apocalyptic number.

It is an amenable number.

52850381 is a deficient number, since it is larger than the sum of its proper divisors (5694259).

52850381 is a wasteful number, since it uses less digits than its factorization.

52850381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 52850381 is about 7269.8267517184. The cubic root of 52850381 is about 375.2747757980.

The spelling of 52850381 in words is "fifty-two million, eight hundred fifty thousand, three hundred eighty-one".

Divisors: 1 19 31 53 589 1007 1643 1693 31217 32167 52483 89729 997177 1704851 2781599 52850381