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2130199 = 2418839
BaseRepresentation
bin1000001000000100010111
311000020002021
420020010113
51021131244
6113354011
724051331
oct10100427
94006067
102130199
1112254a5
12868907
13597796
143d6451
152c1284
hex208117

2130199 has 4 divisors (see below), whose sum is σ = 2139280. Its totient is φ = 2121120.

The previous prime is 2130173. The next prime is 2130209. The reversal of 2130199 is 9910312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2130199 is a prime.

It is a Duffinian number.

2130199 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4179 + ... + 4660.

It is an arithmetic number, because the mean of its divisors is an integer number (534820).

22130199 is an apocalyptic number.

2130199 is a deficient number, since it is larger than the sum of its proper divisors (9081).

2130199 is an equidigital number, since it uses as much as digits as its factorization.

2130199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9080.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 2130199 is about 1459.5201266170. The cubic root of 2130199 is about 128.6688419306.

The spelling of 2130199 in words is "two million, one hundred thirty thousand, one hundred ninety-nine".

Divisors: 1 241 8839 2130199