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52445817 = 3227121503
BaseRepresentation
bin1100100000010…
…0001001111001
310122200112010200
43020010021321
5101411231232
65112032413
71204532154
oct310041171
9118615120
1052445817
1127671356
1215692709
13ab33738
146d72c9b
15490e77c
hex3204279

52445817 has 12 divisors (see below), whose sum is σ = 76038144. Its totient is φ = 34833240.

The previous prime is 52445803. The next prime is 52445821. The reversal of 52445817 is 71854425.

It is not a de Polignac number, because 52445817 - 24 = 52445801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52445857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8313 + ... + 13190.

It is an arithmetic number, because the mean of its divisors is an integer number (6336512).

Almost surely, 252445817 is an apocalyptic number.

It is an amenable number.

52445817 is a deficient number, since it is larger than the sum of its proper divisors (23592327).

52445817 is a wasteful number, since it uses less digits than its factorization.

52445817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21780 (or 21777 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 52445817 is about 7241.9484256656. The cubic root of 52445817 is about 374.3147592831.

The spelling of 52445817 in words is "fifty-two million, four hundred forty-five thousand, eight hundred seventeen".

Divisors: 1 3 9 271 813 2439 21503 64509 193527 5827313 17481939 52445817