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20212302020 = 2252343939787
BaseRepresentation
bin10010110100101111…
…110100000011000100
31221011122000022212112
4102310233310003010
5312343322131040
613141351440152
71313610506141
oct226457640304
957148008775
1020212302020
118632354739
123b01086058
131ba167b531
14d9a58b3c8
157d4705365
hex4b4bf40c4

20212302020 has 24 divisors (see below), whose sum is σ = 44291306304. Its totient is φ = 7733402336.

The previous prime is 20212302007. The next prime is 20212302073. The reversal of 20212302020 is 2020321202.

It is a junction number, because it is equal to n+sod(n) for n = 20212301986 and 20212302004.

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, 21969434 + ... + 21970353.

It is an arithmetic number, because the mean of its divisors is an integer number (1845471096).

Almost surely, 220212302020 is an apocalyptic number.

20212302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212302020 is an abundant number, since it is smaller than the sum of its proper divisors (24079004284).

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

20212302020 is a wasteful number, since it uses less digits than its factorization.

20212302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43939819 (or 43939817 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20212302020 its reverse (2020321202), we get a palindrome (22232623222).

The spelling of 20212302020 in words is "twenty billion, two hundred twelve million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 43939787 87879574 175759148 219698935 439397870 878795740 1010615101 2021230202 4042460404 5053075505 10106151010 20212302020