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2144130451 = 83187113807
BaseRepresentation
bin111111111001100…
…1101010110010011
312112102120010000221
41333303031112103
513342344133301
6552432053511
7104063544121
oct17763152623
95472503027
102144130451
11a0033aa41
124ba094297
1328229c758
14164a96911
15c8382da1
hex7fccd593

2144130451 has 8 divisors (see below), whose sum is σ = 2171280384. Its totient is φ = 2117012040.

The previous prime is 2144130421. The next prime is 2144130481. The reversal of 2144130451 is 1540314412.

It is an interprime number because it is at equal distance from previous prime (2144130421) and next prime (2144130481).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144130451 - 27 = 2144130323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144130421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148390 + ... + 162196.

It is an arithmetic number, because the mean of its divisors is an integer number (271410048).

Almost surely, 22144130451 is an apocalyptic number.

2144130451 is a deficient number, since it is larger than the sum of its proper divisors (27149933).

2144130451 is a wasteful number, since it uses less digits than its factorization.

2144130451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15761.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2144130451 is about 46304.7562459841. The cubic root of 2144130451 is about 1289.4872972078.

Adding to 2144130451 its reverse (1540314412), we get a palindrome (3684444863).

The spelling of 2144130451 in words is "two billion, one hundred forty-four million, one hundred thirty thousand, four hundred fifty-one".

Divisors: 1 83 1871 13807 155293 1145981 25832897 2144130451