Search a number
-
+
1444044020 = 22572202201
BaseRepresentation
bin101011000010010…
…0101110011110100
310201122020000222212
41112010211303310
510424133402040
6355142512552
750533112606
oct12604456364
93648200885
101444044020
11681141711
12343735758
131a022cc23
14d9ad9176
1586b94d65
hex56125cf4

1444044020 has 12 divisors (see below), whose sum is σ = 3032492484. Its totient is φ = 577617600.

The previous prime is 1444043987. The next prime is 1444044037. The reversal of 1444044020 is 204404441.

It can be written as a sum of positive squares in 2 ways, for example, as 914215696 + 529828324 = 30236^2 + 23018^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36101081 + ... + 36101120.

It is an arithmetic number, because the mean of its divisors is an integer number (252707707).

Almost surely, 21444044020 is an apocalyptic number.

1444044020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444044020 is an abundant number, since it is smaller than the sum of its proper divisors (1588448464).

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

1444044020 is a wasteful number, since it uses less digits than its factorization.

1444044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72202210 (or 72202208 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1444044020 is about 38000.5792061121. The cubic root of 1444044020 is about 1130.2993489952.

Adding to 1444044020 its reverse (204404441), we get a palindrome (1648448461).

The spelling of 1444044020 in words is "one billion, four hundred forty-four million, forty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 72202201 144404402 288808804 361011005 722022010 1444044020