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1244004442 = 21989367831
BaseRepresentation
bin100101000100110…
…0000000001011010
310012200210222021121
41022021200001122
510021431120232
6323235155454
742553602052
oct11211400132
93180728247
101244004442
11589231a4a
122a8745b8a
1316a960905
14bb306562
157432dd97
hex4a26005a

1244004442 has 16 divisors (see below), whose sum is σ = 1986292800. Its totient is φ = 582642720.

The previous prime is 1244004431. The next prime is 1244004469. The reversal of 1244004442 is 2444004421.

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, 180534 + ... + 187297.

It is an arithmetic number, because the mean of its divisors is an integer number (124143300).

Almost surely, 21244004442 is an apocalyptic number.

1244004442 is a deficient number, since it is larger than the sum of its proper divisors (742288358).

1244004442 is a wasteful number, since it uses less digits than its factorization.

1244004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367941.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1244004442 is about 35270.4471477184. The cubic root of 1244004442 is about 1075.4923123080.

Adding to 1244004442 its reverse (2444004421), we get a palindrome (3688008863).

The spelling of 1244004442 in words is "one billion, two hundred forty-four million, four thousand, four hundred forty-two".

Divisors: 1 2 19 38 89 178 1691 3382 367831 735662 6988789 13977578 32736959 65473918 622002221 1244004442