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2144353045 = 5428870609
BaseRepresentation
bin111111111010000…
…0011101100010101
312112102222102101011
41333310003230111
513342423244140
6552440532221
7104065462102
oct17764035425
95472872334
102144353045
11a004821aa
124ba181071
13282349b73
14164b13aa9
15c83c8cea
hex7fd03b15

2144353045 has 4 divisors (see below), whose sum is σ = 2573223660. Its totient is φ = 1715482432.

The previous prime is 2144353037. The next prime is 2144353063. The reversal of 2144353045 is 5403534412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 731269764 + 1413083281 = 27042^2 + 37591^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144353045 - 23 = 2144353037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2144352998 and 2144353016.

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, 214435300 + ... + 214435309.

It is an arithmetic number, because the mean of its divisors is an integer number (643305915).

Almost surely, 22144353045 is an apocalyptic number.

It is an amenable number.

2144353045 is a deficient number, since it is larger than the sum of its proper divisors (428870615).

2144353045 is an equidigital number, since it uses as much as digits as its factorization.

2144353045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428870614.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 2144353045 is about 46307.1597595879. The cubic root of 2144353045 is about 1289.5319185916.

Adding to 2144353045 its reverse (5403534412), we get a palindrome (7547887457).

The spelling of 2144353045 in words is "two billion, one hundred forty-four million, three hundred fifty-three thousand, forty-five".

Divisors: 1 5 428870609 2144353045