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2144196488 = 23725469889
BaseRepresentation
bin111111111001101…
…1101011110001000
312112102200110121202
41333303131132020
513342403241423
6552433323332
7104064240500
oct17763353610
95472613552
102144196488
11a00385615
124ba106548
132822c3825
14164ab2a00
15c8397728
hex7fcdd788

2144196488 has 24 divisors (see below), whose sum is σ = 4676755950. Its totient is φ = 918941184.

The previous prime is 2144196487. The next prime is 2144196497. The reversal of 2144196488 is 8846914412.

It can be written as a sum of positive squares in only one way, i.e., 2035994884 + 108201604 = 45122^2 + 10402^2 .

It is not an unprimeable number, because it can be changed into a prime (2144196487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2734553 + ... + 2735336.

Almost surely, 22144196488 is an apocalyptic number.

2144196488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2144196488 is an abundant number, since it is smaller than the sum of its proper divisors (2532559462).

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

2144196488 is a wasteful number, since it uses less digits than its factorization.

2144196488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469909 (or 5469898 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 2144196488 is about 46305.4693097910. The cubic root of 2144196488 is about 1289.5005353635.

The spelling of 2144196488 in words is "two billion, one hundred forty-four million, one hundred ninety-six thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 5469889 10939778 21879556 38289223 43759112 76578446 153156892 268024561 306313784 536049122 1072098244 2144196488