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444030007 = 3779151909
BaseRepresentation
bin11010011101110…
…101110000110111
31010221112001122211
4122131311300313
51402132430012
6112021034251
714001123061
oct3235656067
91127461584
10444030007
11208709353
12104855987
1370cb9565
1442d86731
1528eae6a7
hex1a775c37

444030007 has 8 divisors (see below), whose sum is σ = 461806400. Its totient is φ = 426557664.

The previous prime is 444029969. The next prime is 444030011. The reversal of 444030007 is 700030444.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-444030007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444030007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444030607) 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, 73032 + ... + 78877.

It is an arithmetic number, because the mean of its divisors is an integer number (57725800).

Almost surely, 2444030007 is an apocalyptic number.

444030007 is a deficient number, since it is larger than the sum of its proper divisors (17776393).

444030007 is a wasteful number, since it uses less digits than its factorization.

444030007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152025.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 444030007 is about 21072.0195282749. The cubic root of 444030007 is about 762.9055483777.

The spelling of 444030007 in words is "four hundred forty-four million, thirty thousand, seven".

Divisors: 1 37 79 2923 151909 5620633 12000811 444030007