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444999930 = 23567221393
BaseRepresentation
bin11010100001100…
…010100011111010
31011000100100010220
4122201202203322
51402404444210
6112053520510
714012302614
oct3241424372
91130310126
10444999930
11209211041
12105043136
1371268b8b
1443159db4
1529101c70
hex1a8628fa

444999930 has 32 divisors (see below), whose sum is σ = 1083945024. Its totient is φ = 116894976.

The previous prime is 444999923. The next prime is 444999953. The reversal of 444999930 is 39999444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108687 + ... + 112706.

It is an arithmetic number, because the mean of its divisors is an integer number (33873282).

Almost surely, 2444999930 is an apocalyptic number.

444999930 is an abundant number, since it is smaller than the sum of its proper divisors (638945094).

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

444999930 is a wasteful number, since it uses less digits than its factorization.

444999930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221470.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The square root of 444999930 is about 21095.0214505698. The cubic root of 444999930 is about 763.4606321176.

The spelling of 444999930 in words is "four hundred forty-four million, nine hundred ninety-nine thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 67 134 201 335 402 670 1005 2010 221393 442786 664179 1106965 1328358 2213930 3320895 6641790 14833331 29666662 44499993 74166655 88999986 148333310 222499965 444999930