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52838945 = 512498461
BaseRepresentation
bin1100100110010…
…0001000100001
310200102111101222
43021210020201
5102011321240
65124304425
71211060255
oct311441041
9120374358
1052838945
112790a755
1215842115
13ac40663
147036265
15498aeb5
hex3264221

52838945 has 8 divisors (see below), whose sum is σ = 63465000. Its totient is φ = 42232320.

The previous prime is 52838939. The next prime is 52838987. The reversal of 52838945 is 54983825.

It can be written as a sum of positive squares in 4 ways, for example, as 10445824 + 42393121 = 3232^2 + 6511^2 .

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

It is not a de Polignac number, because 52838945 - 26 = 52838881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52838896 and 52838905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2015 + ... + 10475.

It is an arithmetic number, because the mean of its divisors is an integer number (7933125).

Almost surely, 252838945 is an apocalyptic number.

It is an amenable number.

52838945 is a deficient number, since it is larger than the sum of its proper divisors (10626055).

52838945 is a wasteful number, since it uses less digits than its factorization.

52838945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9715.

The product of its digits is 345600, while the sum is 44.

The square root of 52838945 is about 7269.0401704764. The cubic root of 52838945 is about 375.2477059716.

The spelling of 52838945 in words is "fifty-two million, eight hundred thirty-eight thousand, nine hundred forty-five".

Divisors: 1 5 1249 6245 8461 42305 10567789 52838945