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2144490760 = 23553612269
BaseRepresentation
bin111111111010010…
…0101010100001000
312112110020102021201
41333310211110020
513342442201020
6552443513544
7104066604436
oct17764452410
95473212251
102144490760
11a00566715
124ba2288b4
13282397759
14164b4bd56
15c8404a0a
hex7fd25508

2144490760 has 16 divisors (see below), whose sum is σ = 4825104300. Its totient is φ = 857796288.

The previous prime is 2144490757. The next prime is 2144490763. The reversal of 2144490760 is 670944412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2144490757) and next prime (2144490763).

It can be written as a sum of positive squares in 2 ways, for example, as 2014393924 + 130096836 = 44882^2 + 11406^2 .

It is not an unprimeable number, because it can be changed into a prime (2144490763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26806095 + ... + 26806174.

Almost surely, 22144490760 is an apocalyptic number.

2144490760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144490760 is an abundant number, since it is smaller than the sum of its proper divisors (2680613540).

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

2144490760 is a wasteful number, since it uses less digits than its factorization.

2144490760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53612280 (or 53612276 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2144490760 is about 46308.6467087951. The cubic root of 2144490760 is about 1289.5595235122.

The spelling of 2144490760 in words is "two billion, one hundred forty-four million, four hundred ninety thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 53612269 107224538 214449076 268061345 428898152 536122690 1072245380 2144490760