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8287872 = 273113191
BaseRepresentation
bin11111100111011010000000
3120121001211020
4133213122000
54110202442
6453345440
7130305615
oct37473200
916531736
108287872
11475088a
122938280
131942488
14115a50c
15ada9ec
hex7e7680

8287872 has 64 divisors (see below), whose sum is σ = 22325760. Its totient is φ = 2723840.

The previous prime is 8287871. The next prime is 8287883. The reversal of 8287872 is 2787828.

8287872 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (8287871) 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, 43297 + ... + 43487.

It is an arithmetic number, because the mean of its divisors is an integer number (348840).

Almost surely, 28287872 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 8287872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11162880).

8287872 is an abundant number, since it is smaller than the sum of its proper divisors (14037888).

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

8287872 is a wasteful number, since it uses less digits than its factorization.

8287872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 309 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 8287872 is about 2878.8664435850. The cubic root of 8287872 is about 202.3707207148.

The spelling of 8287872 in words is "eight million, two hundred eighty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 113 128 191 192 226 339 382 384 452 573 678 764 904 1146 1356 1528 1808 2292 2712 3056 3616 4584 5424 6112 7232 9168 10848 12224 14464 18336 21583 21696 24448 36672 43166 43392 64749 73344 86332 129498 172664 258996 345328 517992 690656 1035984 1381312 2071968 2762624 4143936 8287872