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2101200013 = 111901100483
BaseRepresentation
bin111110100111101…
…1100010010001101
312102102210000112201
41331033130102031
513300401400023
6544300001501
7103032622363
oct17517342215
95372700481
102101200013
11989088740
124a7830291
1327641b123
1415d0bd633
15c4702bad
hex7d3dc48d

2101200013 has 8 divisors (see below), whose sum is σ = 2293446816. Its totient is φ = 1909158000.

The previous prime is 2101200011. The next prime is 2101200019. The reversal of 2101200013 is 3100021012.

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 2101200013 - 21 = 2101200011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101200011) 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, 29331 + ... + 71152.

It is an arithmetic number, because the mean of its divisors is an integer number (286680852).

Almost surely, 22101200013 is an apocalyptic number.

It is an amenable number.

2101200013 is a deficient number, since it is larger than the sum of its proper divisors (192246803).

2101200013 is a wasteful number, since it uses less digits than its factorization.

2101200013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102395.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2101200013 is about 45838.8482948688. The cubic root of 2101200013 is about 1280.8230410237.

Adding to 2101200013 its reverse (3100021012), we get a palindrome (5201221025).

The spelling of 2101200013 in words is "two billion, one hundred one million, two hundred thousand, thirteen".

Divisors: 1 11 1901 20911 100483 1105313 191018183 2101200013