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20201311210 = 257128452551
BaseRepresentation
bin10010110100000101…
…111000101111101010
31221010212022221022111
4102310011320233222
5312333013424320
613140320112534
71313415212023
oct226405705752
957125287274
1020201311210
118627128123
123ab946574a
131b9c3009b2
14d98d29c4a
157d3783a5a
hex4b4178bea

20201311210 has 16 divisors (see below), whose sum is σ = 36874507392. Its totient is φ = 7966714000.

The previous prime is 20201311189. The next prime is 20201311211. The reversal of 20201311210 is 1211310202.

It is not an unprimeable number, because it can be changed into a prime (20201311211) 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, 14225566 + ... + 14226985.

It is an arithmetic number, because the mean of its divisors is an integer number (2304656712).

Almost surely, 220201311210 is an apocalyptic number.

20201311210 is a deficient number, since it is larger than the sum of its proper divisors (16673196182).

20201311210 is a wasteful number, since it uses less digits than its factorization.

20201311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28452629.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20201311210 its reverse (1211310202), we get a palindrome (21412621412).

The spelling of 20201311210 in words is "twenty billion, two hundred one million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 71 142 355 710 28452551 56905102 142262755 284525510 2020131121 4040262242 10100655605 20201311210