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444488892 = 223231610467
BaseRepresentation
bin11010011111100…
…101110010111100
31010222101101010120
4122133211302330
51402242121032
6112034534540
714005043661
oct3237456274
91128341116
10444488892
112089a20a1
12104a37450
137111a3a3
1443065a68
152905062c
hex1a7e5cbc

444488892 has 24 divisors (see below), whose sum is σ = 1082234496. Its totient is φ = 141721008.

The previous prime is 444488879. The next prime is 444488929. The reversal of 444488892 is 298884444.

It is a super-2 number, since 2×4444888922 = 395140750222775328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804958 + ... + 805509.

It is an arithmetic number, because the mean of its divisors is an integer number (45093104).

Almost surely, 2444488892 is an apocalyptic number.

It is an amenable number.

444488892 is an abundant number, since it is smaller than the sum of its proper divisors (637745604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444488892 is a wasteful number, since it uses less digits than its factorization.

444488892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610497 (or 1610495 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The square root of 444488892 is about 21082.9052077744. The cubic root of 444488892 is about 763.1682673958.

The spelling of 444488892 in words is "four hundred forty-four million, four hundred eighty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 1610467 3220934 4831401 6441868 9662802 19325604 37040741 74081482 111122223 148162964 222244446 444488892