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8015125 = 53371733
BaseRepresentation
bin11110100100110100010101
3120002012200111
4132210310111
54022441000
6443443021
7125061466
oct36446425
916065614
108015125
114584978
122826471
1318782a1
1410c8d6d
15a84cba
hex7a4d15

8015125 has 16 divisors (see below), whose sum is σ = 10279152. Its totient is φ = 6235200.

The previous prime is 8015101. The next prime is 8015129. The reversal of 8015125 is 5215108.

It can be written as a sum of positive squares in 8 ways, for example, as 1249924 + 6765201 = 1118^2 + 2601^2 .

It is not a de Polignac number, because 8015125 - 29 = 8014613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8015096 and 8015105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8015129) 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, 3759 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (642447).

Almost surely, 28015125 is an apocalyptic number.

It is an amenable number.

8015125 is a deficient number, since it is larger than the sum of its proper divisors (2264027).

8015125 is a wasteful number, since it uses less digits than its factorization.

8015125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 8015125 is about 2831.0996096923. The cubic root of 8015125 is about 200.1259623175.

It can be divided in two parts, 80 and 15125, that multiplied together give a square (1210000 = 11002).

The spelling of 8015125 in words is "eight million, fifteen thousand, one hundred twenty-five".

Divisors: 1 5 25 37 125 185 925 1733 4625 8665 43325 64121 216625 320605 1603025 8015125