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444464444 = 22281395431
BaseRepresentation
bin11010011111011…
…111110100111100
31010222100010121002
4122133133310330
51402240330234
6112034225432
714004612464
oct3237376474
91128303532
10444464444
11208985796
12104a25278
137110c218
144305aba4
152904827e
hex1a7dfd3c

444464444 has 12 divisors (see below), whose sum is σ = 780582768. Its totient is φ = 221440800.

The previous prime is 444464441. The next prime is 444464513.

444464444 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 444464398 and 444464407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444464441) 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, 196592 + ... + 198839.

It is an arithmetic number, because the mean of its divisors is an integer number (65048564).

Almost surely, 2444464444 is an apocalyptic number.

It is an amenable number.

444464444 is a deficient number, since it is larger than the sum of its proper divisors (336118324).

444464444 is a wasteful number, since it uses less digits than its factorization.

444464444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395716 (or 395714 counting only the distinct ones).

The product of its digits is 393216, while the sum is 38.

The square root of 444464444 is about 21082.3253935613. The cubic root of 444464444 is about 763.1542750852.

The spelling of 444464444 in words is "four hundred forty-four million, four hundred sixty-four thousand, four hundred forty-four".

Divisors: 1 2 4 281 562 1124 395431 790862 1581724 111116111 222232222 444464444