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2180143001 = 3077101443
BaseRepresentation
bin1000000111110010…
…0101011110011001
312121221022201222002
42001330211132121
513431104034001
61000200010345
7105011624021
oct20174453631
95557281862
102180143001
11a196a7783
1250a1609b5
1328989b35a
1416978ca81
15cb5e846b
hex81f25799

2180143001 has 4 divisors (see below), whose sum is σ = 2187244752. Its totient is φ = 2173041252.

The previous prime is 2180142967. The next prime is 2180143073. The reversal of 2180143001 is 1003410812.

2180143001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-2180143001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180143501) 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, 3550415 + ... + 3551028.

It is an arithmetic number, because the mean of its divisors is an integer number (546811188).

Almost surely, 22180143001 is an apocalyptic number.

It is an amenable number.

2180143001 is a deficient number, since it is larger than the sum of its proper divisors (7101751).

2180143001 is an equidigital number, since it uses as much as digits as its factorization.

2180143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7101750.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2180143001 is about 46692.0014670607. The cubic root of 2180143001 is about 1296.6666081230. Note that the first 4 decimals are identical.

Adding to 2180143001 its reverse (1003410812), we get a palindrome (3183553813).

The spelling of 2180143001 in words is "two billion, one hundred eighty million, one hundred forty-three thousand, one".

Divisors: 1 307 7101443 2180143001