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2141303987 = 6731959761
BaseRepresentation
bin111111110100001…
…1011010010110011
312112020020111212002
41333220123102303
513341133211422
6552251324215
7104030532524
oct17750332263
95466214762
102141303987
119a978a419
124b915066b
132818200a4
1416455c84b
15c7ec5692
hex7fa1b4b3

2141303987 has 4 divisors (see below), whose sum is σ = 2173263816. Its totient is φ = 2109344160.

The previous prime is 2141303959. The next prime is 2141303993. The reversal of 2141303987 is 7893031412.

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

It is a cyclic number.

It is not a de Polignac number, because 2141303987 - 218 = 2141041843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2141303987.

It is not an unprimeable number, because it can be changed into a prime (2141303917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15979814 + ... + 15979947.

It is an arithmetic number, because the mean of its divisors is an integer number (543315954).

Almost surely, 22141303987 is an apocalyptic number.

2141303987 is a deficient number, since it is larger than the sum of its proper divisors (31959829).

2141303987 is an equidigital number, since it uses as much as digits as its factorization.

2141303987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31959828.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2141303987 is about 46274.2259470647. The cubic root of 2141303987 is about 1288.9204330488.

The spelling of 2141303987 in words is "two billion, one hundred forty-one million, three hundred three thousand, nine hundred eighty-seven".

Divisors: 1 67 31959761 2141303987