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2143030067 = 2398966653
BaseRepresentation
bin111111110111100…
…0000101100110011
312112100111012120222
41333233000230303
513342103430232
6552352323255
7104051312033
oct17757005463
95470435528
102143030067
119aa759232
124b984352b
13281ca5939
1416488b8c3
15c8216d12
hex7fbc0b33

2143030067 has 4 divisors (see below), whose sum is σ = 2151996960. Its totient is φ = 2134063176.

The previous prime is 2143030063. The next prime is 2143030069. The reversal of 2143030067 is 7600303412.

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 2143030067 - 22 = 2143030063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143030063) 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, 4483088 + ... + 4483565.

It is an arithmetic number, because the mean of its divisors is an integer number (537999240).

Almost surely, 22143030067 is an apocalyptic number.

2143030067 is a deficient number, since it is larger than the sum of its proper divisors (8966893).

2143030067 is an equidigital number, since it uses as much as digits as its factorization.

2143030067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966892.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 2143030067 is about 46292.8727451646. The cubic root of 2143030067 is about 1289.2666679089.

Adding to 2143030067 its reverse (7600303412), we get a palindrome (9743333479).

The spelling of 2143030067 in words is "two billion, one hundred forty-three million, thirty thousand, sixty-seven".

Divisors: 1 239 8966653 2143030067