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2021201013 = 31351825667
BaseRepresentation
bin111100001111001…
…0001010001110101
312012212020122112210
41320132101101311
513114411413023
6532321204033
7101041632216
oct17036212165
95185218483
102021201013
11947a08267
12484a90619
1326298b340
1415261740d
15bc69e593
hex78791475

2021201013 has 8 divisors (see below), whose sum is σ = 2902237408. Its totient is φ = 1243815984.

The previous prime is 2021200933. The next prime is 2021201027. The reversal of 2021201013 is 3101021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021201013 - 28 = 2021200757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021201013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021251013) 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, 25912795 + ... + 25912872.

It is an arithmetic number, because the mean of its divisors is an integer number (362779676).

Almost surely, 22021201013 is an apocalyptic number.

It is an amenable number.

2021201013 is a deficient number, since it is larger than the sum of its proper divisors (881036395).

2021201013 is a wasteful number, since it uses less digits than its factorization.

2021201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51825683.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2021201013 is about 44957.7692173444. The cubic root of 2021201013 is about 1264.3573447293.

Adding to 2021201013 its reverse (3101021202), we get a palindrome (5122222215).

The spelling of 2021201013 in words is "two billion, twenty-one million, two hundred one thousand, thirteen".

Divisors: 1 3 13 39 51825667 155477001 673733671 2021201013