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52147825 = 5213115923
BaseRepresentation
bin1100011011101…
…1011001110001
310122010101100221
43012323121301
5101322212300
65101413041
71202151322
oct306733161
9118111327
1052147825
1127488484
121556a181
13aa5ac02
146cd6449
1548a131a
hex31bb671

52147825 has 12 divisors (see below), whose sum is σ = 65161008. Its totient is φ = 41397200.

The previous prime is 52147811. The next prime is 52147853. The reversal of 52147825 is 52874125.

It is a happy number.

It is not a de Polignac number, because 52147825 - 211 = 52145777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4687 + ... + 11236.

It is an arithmetic number, because the mean of its divisors is an integer number (5430084).

Almost surely, 252147825 is an apocalyptic number.

It is an amenable number.

52147825 is a deficient number, since it is larger than the sum of its proper divisors (13013183).

52147825 is a wasteful number, since it uses less digits than its factorization.

52147825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16064 (or 16059 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 52147825 is about 7221.3450963100. The cubic root of 52147825 is about 373.6044723751.

The spelling of 52147825 in words is "fifty-two million, one hundred forty-seven thousand, eight hundred twenty-five".

Divisors: 1 5 25 131 655 3275 15923 79615 398075 2085913 10429565 52147825