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2020202200021 = 16132917942923
BaseRepresentation
bin11101011001011101011…
…011110011101111010101
321011010111100211221111111
4131121131123303233111
5231044333230400041
64144022412135021
7265645331241265
oct35313533635725
97133440757444
102020202200021
11709843525765
12287641767471
13118672ab6795
146dac796b7a5
153783b889981
hex1d65d6f3bd5

2020202200021 has 8 divisors (see below), whose sum is σ = 2021571024480. Its totient is φ = 2018833522992.

The previous prime is 2020202200019. The next prime is 2020202200073. The reversal of 2020202200021 is 1200022020202.

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 2020202200021 - 21 = 2020202200019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020202199974 and 2020202200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020202200721) 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, 47044266 + ... + 47087188.

It is an arithmetic number, because the mean of its divisors is an integer number (252696378060).

Almost surely, 22020202200021 is an apocalyptic number.

It is an amenable number.

2020202200021 is a deficient number, since it is larger than the sum of its proper divisors (1368824459).

2020202200021 is a wasteful number, since it uses less digits than its factorization.

2020202200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73715.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2020202200021 its reverse (1200022020202), we get a palindrome (3220224220223).

The spelling of 2020202200021 in words is "two trillion, twenty billion, two hundred two million, two hundred thousand, twenty-one".

Divisors: 1 1613 29179 42923 47065727 69234799 1252450217 2020202200021