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444607085 = 5136840109
BaseRepresentation
bin11010100000000…
…010101001101101
31010222121101021002
4122200002221231
51402304411320
6112041250045
714006045366
oct3240025155
91128541232
10444607085
11208a7297a
12104a93925
137115c120
1443096b6d
1529075675
hex1a802a6d

444607085 has 8 divisors (see below), whose sum is σ = 574569240. Its totient is φ = 328325184.

The previous prime is 444607081. The next prime is 444607099. The reversal of 444607085 is 580706444.

It can be written as a sum of positive squares in 4 ways, for example, as 1378276 + 443228809 = 1174^2 + 21053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444607085 - 22 = 444607081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444607081) 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, 3419990 + ... + 3420119.

It is an arithmetic number, because the mean of its divisors is an integer number (71821155).

Almost surely, 2444607085 is an apocalyptic number.

It is an amenable number.

444607085 is a deficient number, since it is larger than the sum of its proper divisors (129962155).

444607085 is a wasteful number, since it uses less digits than its factorization.

444607085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840127.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 444607085 is about 21085.7080744280. The cubic root of 444607085 is about 763.2359054964.

The spelling of 444607085 in words is "four hundred forty-four million, six hundred seven thousand, eighty-five".

Divisors: 1 5 13 65 6840109 34200545 88921417 444607085