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444868471 = 2271959773
BaseRepresentation
bin11010100001000…
…010011101110111
31011000002122211001
4122201002131313
51402341242341
6112051024131
714011214425
oct3241023567
91130078731
10444868471
112091312a3
12104b9b047
13712210a8
1443124115
15290c7d31
hex1a842777

444868471 has 4 divisors (see below), whose sum is σ = 446828472. Its totient is φ = 442908472.

The previous prime is 444868469. The next prime is 444868477. The reversal of 444868471 is 174868444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444868471 - 21 = 444868469 is a prime.

It is a super-3 number, since 3×4448684713 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444868477) 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, 979660 + ... + 980113.

It is an arithmetic number, because the mean of its divisors is an integer number (111707118).

Almost surely, 2444868471 is an apocalyptic number.

444868471 is a deficient number, since it is larger than the sum of its proper divisors (1960001).

444868471 is a wasteful number, since it uses less digits than its factorization.

444868471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960000.

The product of its digits is 688128, while the sum is 46.

The square root of 444868471 is about 21091.9053430457. The cubic root of 444868471 is about 763.3854458467.

The spelling of 444868471 in words is "four hundred forty-four million, eight hundred sixty-eight thousand, four hundred seventy-one".

Divisors: 1 227 1959773 444868471