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444087 = 32721953
BaseRepresentation
bin1101100011010110111
3211120011200
41230122313
5103202322
613303543
73526500
oct1543267
9746150
10444087
11283716
12194bb3
13127197
14b7ba7
158b8ac
hex6c6b7

444087 has 36 divisors (see below), whose sum is σ = 800280. Its totient is φ = 235872.

The previous prime is 444079. The next prime is 444089. The reversal of 444087 is 780444.

It is not a de Polignac number, because 444087 - 23 = 444079 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 444087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444089) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8353 + ... + 8405.

It is an arithmetic number, because the mean of its divisors is an integer number (22230).

2444087 is an apocalyptic number.

444087 is a deficient number, since it is larger than the sum of its proper divisors (356193).

444087 is a wasteful number, since it uses less digits than its factorization.

444087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 444087 is about 666.3985294101. The cubic root of 444087 is about 76.2938187625.

The spelling of 444087 in words is "four hundred forty-four thousand, eighty-seven".

Divisors: 1 3 7 9 19 21 49 53 57 63 133 147 159 171 371 399 441 477 931 1007 1113 1197 2597 2793 3021 3339 7049 7791 8379 9063 21147 23373 49343 63441 148029 444087