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20101200219 = 332119335129
BaseRepresentation
bin10010101110000111…
…111111100101011011
31220212212221202212000
4102232013333211123
5312131401401334
613122342252043
71311061245162
oct225607774533
956785852760
1020101200219
118585670271
123a8ba27023
131b8464b819
14d8990a3d9
157c9aab299
hex4ae1ff95b

20101200219 has 16 divisors (see below), whose sum is σ = 29781808800. Its totient is φ = 13399786368.

The previous prime is 20101200179. The next prime is 20101200241. The reversal of 20101200219 is 91200210102.

It is not a de Polignac number, because 20101200219 - 211 = 20101198171 is a prime.

It is a super-2 number, since 2×201012002192 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20101200269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554647 + ... + 589775.

It is an arithmetic number, because the mean of its divisors is an integer number (1861363050).

Almost surely, 220101200219 is an apocalyptic number.

20101200219 is a deficient number, since it is larger than the sum of its proper divisors (9680608581).

20101200219 is a wasteful number, since it uses less digits than its factorization.

20101200219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56331 (or 56325 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 20101200219 in words is "twenty billion, one hundred one million, two hundred thousand, two hundred nineteen".

Divisors: 1 3 9 27 21193 35129 63579 105387 190737 316161 572211 948483 744488897 2233466691 6700400073 20101200219