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8081925 = 352197547
BaseRepresentation
bin11110110101001000000101
3120012121022120
4132311020011
54032110200
6445120153
7125460315
oct36651005
916177276
108081925
114620085
122859059
13189c807
141105445
15a999a0
hex7b5205

8081925 has 24 divisors (see below), whose sum is σ = 13454496. Its totient is φ = 4280640.

The previous prime is 8081849. The next prime is 8081929. The reversal of 8081925 is 5291808.

It is a happy number.

It is not a de Polignac number, because 8081925 - 210 = 8080901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14502 + ... + 15048.

It is an arithmetic number, because the mean of its divisors is an integer number (560604).

Almost surely, 28081925 is an apocalyptic number.

It is an amenable number.

8081925 is a deficient number, since it is larger than the sum of its proper divisors (5372571).

8081925 is a wasteful number, since it uses less digits than its factorization.

8081925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8081925 is about 2842.8726668636. The cubic root of 8081925 is about 200.6803910486.

The spelling of 8081925 in words is "eight million, eighty-one thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 197 547 591 985 1641 2735 2955 4925 8205 13675 14775 41025 107759 323277 538795 1616385 2693975 8081925