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444417 = 3148139
BaseRepresentation
bin1101100100000000001
3211120121220
41230200001
5103210132
613305253
73530451
oct1544001
9746556
10444417
11283996
12195229
1312738c
14b7d61
158ba2c
hex6c801

444417 has 4 divisors (see below), whose sum is σ = 592560. Its totient is φ = 296276.

The previous prime is 444403. The next prime is 444421. The reversal of 444417 is 714444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444417 - 24 = 444401 is a prime.

It is a D-number.

444417 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (444487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74067 + ... + 74072.

It is an arithmetic number, because the mean of its divisors is an integer number (148140).

It is a Proth number, since it is equal to 217 ⋅ 211 + 1 and 217 < 211.

2444417 is an apocalyptic number.

It is an amenable number.

444417 is a deficient number, since it is larger than the sum of its proper divisors (148143).

444417 is a wasteful number, since it uses less digits than its factorization.

444417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148142.

The product of its digits is 1792, while the sum is 24.

The square root of 444417 is about 666.6460830156. The cubic root of 444417 is about 76.3127120022.

It can be divided in two parts, 444 and 417, that added together give a triangular number (861 = T41).

The spelling of 444417 in words is "four hundred forty-four thousand, four hundred seventeen", and thus it is an iban number.

Divisors: 1 3 148139 444417