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2020012443 = 32317708031
BaseRepresentation
bin111100001100110…
…1111000110011011
312012210000021010200
41320121233012123
513114110344233
6532235513243
7101025552051
oct17031570633
95183007120
102020012443
11947276279
124845b8823
13262663347
141523c81d1
15bc517313
hex7866f19b

2020012443 has 12 divisors (see below), whose sum is σ = 2927004288. Its totient is φ = 1342424880.

The previous prime is 2020012439. The next prime is 2020012451. The reversal of 2020012443 is 3442100202.

2020012443 is a `hidden beast` number, since 20 + 200 + 1 + 2 + 443 = 666.

It is not a de Polignac number, because 2020012443 - 22 = 2020012439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020012243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351163 + ... + 356868.

It is an arithmetic number, because the mean of its divisors is an integer number (243917024).

Almost surely, 22020012443 is an apocalyptic number.

2020012443 is a deficient number, since it is larger than the sum of its proper divisors (906991845).

2020012443 is a wasteful number, since it uses less digits than its factorization.

2020012443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708354 (or 708351 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2020012443 is about 44944.5485348335. The cubic root of 2020012443 is about 1264.1094604490.

Adding to 2020012443 its reverse (3442100202), we get a palindrome (5462112645).

The spelling of 2020012443 in words is "two billion, twenty million, twelve thousand, four hundred forty-three".

Divisors: 1 3 9 317 951 2853 708031 2124093 6372279 224445827 673337481 2020012443