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20000213111 = 1271013155461
BaseRepresentation
bin10010101000000110…
…110000100001110111
31220121211221002120202
4102220012300201313
5311430023304421
613104333551115
71305424002134
oct225006604167
956554832522
1020000213111
11853366514a
123a6204549b
131b69750938
14d7a33d58b
157c0cae10b
hex4a81b0877

20000213111 has 8 divisors (see below), whose sum is σ = 20177723904. Its totient is φ = 19823015520.

The previous prime is 20000213099. The next prime is 20000213113. The reversal of 20000213111 is 11131200002.

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 20000213111 - 210 = 20000212087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000213092 and 20000213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000213113) 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, 50921 + ... + 206381.

It is an arithmetic number, because the mean of its divisors is an integer number (2522215488).

Almost surely, 220000213111 is an apocalyptic number.

20000213111 is a deficient number, since it is larger than the sum of its proper divisors (177510793).

20000213111 is a wasteful number, since it uses less digits than its factorization.

20000213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156601.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20000213111 its reverse (11131200002), we get a palindrome (31131413113).

The spelling of 20000213111 in words is "twenty billion, two hundred thirteen thousand, one hundred eleven".

Divisors: 1 127 1013 128651 155461 19743547 157481993 20000213111