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8125385 = 537167263
BaseRepresentation
bin11110111111101111001001
3120021210221012
4132333233021
54040003020
6450053305
7126031112
oct36775711
916253835
108125385
11464a7a4
12287a235
1318b6528
141117209
15aa77c5
hex7bfbc9

8125385 has 16 divisors (see below), whose sum is σ = 10112256. Its totient is φ = 6262848.

The previous prime is 8125373. The next prime is 8125391. The reversal of 8125385 is 5835218.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8125385 - 26 = 8125321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30764 + ... + 31026.

It is an arithmetic number, because the mean of its divisors is an integer number (632016).

Almost surely, 28125385 is an apocalyptic number.

It is an amenable number.

8125385 is a deficient number, since it is larger than the sum of its proper divisors (1986871).

8125385 is a wasteful number, since it uses less digits than its factorization.

8125385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

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

The square root of 8125385 is about 2850.5060954153. The cubic root of 8125385 is about 201.0394632217.

The spelling of 8125385 in words is "eight million, one hundred twenty-five thousand, three hundred eighty-five".

Divisors: 1 5 37 167 185 263 835 1315 6179 9731 30895 43921 48655 219605 1625077 8125385