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8005712 = 2411133499
BaseRepresentation
bin11110100010100001010000
3120001201202212
4132202201100
54022140322
6443331252
7125022161
oct36424120
916051685
108005712
1145788a0
122820b28
131873c10
1410c5768
15a820e2
hex7a2850

8005712 has 40 divisors (see below), whose sum is σ = 18228000. Its totient is φ = 3358080.

The previous prime is 8005693. The next prime is 8005717. The reversal of 8005712 is 2175008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8005717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (455700).

Almost surely, 28005712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8005712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9114000).

8005712 is an abundant number, since it is smaller than the sum of its proper divisors (10222288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8005712 is a wasteful number, since it uses less digits than its factorization.

8005712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531 (or 3525 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 8005712 is about 2829.4366930539. The cubic root of 8005712 is about 200.0475886757.

The spelling of 8005712 in words is "eight million, five thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 88 104 143 176 208 286 572 1144 2288 3499 6998 13996 27992 38489 45487 55984 76978 90974 153956 181948 307912 363896 500357 615824 727792 1000714 2001428 4002856 8005712