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202200102020 = 22571444286443
BaseRepresentation
bin1011110001010000010…
…0001011010010000100
3201022220200011110002102
42330110010023102010
511303101211231040
6232520041531232
720415464336420
oct2742404132204
9638820143072
10202200102020
1178830760434
12332304a3b18
13160b50880a7
149b02387b80
1553d66b1515
hex2f1410b484

202200102020 has 24 divisors (see below), whose sum is σ = 485280245184. Its totient is φ = 69325749216.

The previous prime is 202200102011. The next prime is 202200102043. The reversal of 202200102020 is 20201002202.

It is a junction number, because it is equal to n+sod(n) for n = 202200101992 and 202200102010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722143082 + ... + 722143361.

It is an arithmetic number, because the mean of its divisors is an integer number (20220010216).

Almost surely, 2202200102020 is an apocalyptic number.

202200102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202200102020 is an abundant number, since it is smaller than the sum of its proper divisors (283080143164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202200102020 is a wasteful number, since it uses less digits than its factorization.

202200102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444286459 (or 1444286457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 202200102020 its reverse (20201002202), we get a palindrome (222401104222).

The spelling of 202200102020 in words is "two hundred two billion, two hundred million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1444286443 2888572886 5777145772 7221432215 10110005101 14442864430 20220010202 28885728860 40440020404 50550025505 101100051010 202200102020