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860672 = 29412
BaseRepresentation
bin11010010001000000000
31121201121202
43102020000
5210020142
630240332
710213151
oct3221000
91551552
10860672
115386aa
123560a8
13241997
14185928
15120032
hexd2200

860672 has 30 divisors (see below), whose sum is σ = 1762629. Its totient is φ = 419840.

The previous prime is 860663. The next prime is 860689. The reversal of 860672 is 276068.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 614656 + 246016 = 784^2 + 496^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=656.

It is a Duffinian number.

It is a nialpdrome in base 8 and base 16.

It is an unprimeable number.

860672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20972 + ... + 21012.

2860672 is an apocalyptic number.

860672 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860672

860672 is an abundant number, since it is smaller than the sum of its proper divisors (901957).

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

860672 is an frugal number, since it uses more digits than its factorization.

860672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 860672 is about 927.7240969168. The cubic root of 860672 is about 95.1216170950.

The spelling of 860672 in words is "eight hundred sixty thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 41 64 82 128 164 256 328 512 656 1312 1681 2624 3362 5248 6724 10496 13448 20992 26896 53792 107584 215168 430336 860672