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444680 = 23511117
BaseRepresentation
bin1101100100100001000
3211120222122
41230210020
5103212210
613310412
73531305
oct1544410
9746878
10444680
11284105
12195408
13127532
14b80ac
158bb55
hex6c908

444680 has 16 divisors (see below), whose sum is σ = 1000620. Its totient is φ = 177856.

The previous prime is 444677. The next prime is 444701. The reversal of 444680 is 86444.

It can be written as a sum of positive squares in 2 ways, for example, as 407044 + 37636 = 638^2 + 194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5519 + ... + 5598.

2444680 is an apocalyptic number.

444680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444680 is an abundant number, since it is smaller than the sum of its proper divisors (555940).

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

444680 is a wasteful number, since it uses less digits than its factorization.

444680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11128 (or 11124 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 444680 is about 666.8433099312. The cubic root of 444680 is about 76.3277626457.

The spelling of 444680 in words is "four hundred forty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 11117 22234 44468 55585 88936 111170 222340 444680