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2021104213 = 10328369337
BaseRepresentation
bin111100001110111…
…1001101001010101
312012212001201202121
41320131321221111
513114400313323
6532315135541
7101041050052
oct17035715125
95185051677
102021104213
11947951567
12484a445b1
1326295626b
141525d0029
15bc680a5d
hex78779a55

2021104213 has 8 divisors (see below), whose sum is σ = 2047967168. Its totient is φ = 1994380704.

The previous prime is 2021104201. The next prime is 2021104219. The reversal of 2021104213 is 3124011202.

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 2021104213 - 25 = 2021104181 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 (2021104219) 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, 5520 + ... + 63817.

It is an arithmetic number, because the mean of its divisors is an integer number (255995896).

Almost surely, 22021104213 is an apocalyptic number.

It is an amenable number.

2021104213 is a deficient number, since it is larger than the sum of its proper divisors (26862955).

2021104213 is a wasteful number, since it uses less digits than its factorization.

2021104213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69723.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2021104213 is about 44956.6926385827. The cubic root of 2021104213 is about 1264.3371600728.

Adding to 2021104213 its reverse (3124011202), we get a palindrome (5145115415).

The spelling of 2021104213 in words is "two billion, twenty-one million, one hundred four thousand, two hundred thirteen".

Divisors: 1 103 283 29149 69337 7141711 19622371 2021104213