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2144212441 = 7306316063
BaseRepresentation
bin111111111001110…
…0001010111011001
312112102201021111121
41333303201113121
513342404244231
6552433525241
7104064335140
oct17763412731
95472637447
102144212441
11a003965a8
124ba113821
132822cab77
14164ab8757
15c839c311
hex7fce15d9

2144212441 has 4 divisors (see below), whose sum is σ = 2450528512. Its totient is φ = 1837896372.

The previous prime is 2144212439. The next prime is 2144212489. The reversal of 2144212441 is 1442124412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2144212441 - 21 = 2144212439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144212241) 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, 153158025 + ... + 153158038.

It is an arithmetic number, because the mean of its divisors is an integer number (612632128).

Almost surely, 22144212441 is an apocalyptic number.

It is an amenable number.

2144212441 is a deficient number, since it is larger than the sum of its proper divisors (306316071).

2144212441 is an equidigital number, since it uses as much as digits as its factorization.

2144212441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306316070.

The product of its digits is 2048, while the sum is 25.

The square root of 2144212441 is about 46305.6415677399. The cubic root of 2144212441 is about 1289.5037333526.

Adding to 2144212441 its reverse (1442124412), we get a palindrome (3586336853).

It can be divided in two parts, 2 and 144212441, that multiplied together give a palindrome (288424882).

The spelling of 2144212441 in words is "two billion, one hundred forty-four million, two hundred twelve thousand, four hundred forty-one".

Divisors: 1 7 306316063 2144212441