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444400626 = 23592415209
BaseRepresentation
bin11010011111010…
…000001111110010
31010222012220001110
4122133100033302
51402231310001
6112033014150
714004225435
oct3237201762
91128186043
10444400626
1120894184a
121049b4356
13710b9167
144304181c
15290343d6
hex1a7d03f2

444400626 has 32 divisors (see below), whose sum is σ = 907790400. Its totient is φ = 144990720.

The previous prime is 444400603. The next prime is 444400679. The reversal of 444400626 is 626004444.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 444400593 and 444400602.

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, 82710 + ... + 87918.

It is an arithmetic number, because the mean of its divisors is an integer number (28368450).

Almost surely, 2444400626 is an apocalyptic number.

444400626 is an abundant number, since it is smaller than the sum of its proper divisors (463389774).

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

444400626 is a wasteful number, since it uses less digits than its factorization.

444400626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 444400626 is about 21080.8117965130. The cubic root of 444400626 is about 763.1177477459.

The spelling of 444400626 in words is "four hundred forty-four million, four hundred thousand, six hundred twenty-six".

Divisors: 1 2 3 6 59 118 177 241 354 482 723 1446 5209 10418 14219 15627 28438 31254 42657 85314 307331 614662 921993 1255369 1843986 2510738 3766107 7532214 74066771 148133542 222200313 444400626