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2020011122 = 21010005561
BaseRepresentation
bin111100001100110…
…1110110001110010
312012210000012022202
41320121232301302
513114110323442
6532235503202
7101025545153
oct17031566162
95183005282
102020011122
11947275288
124845b7b02
1326266286c
141523c792a
15bc516c32
hex7866ec72

2020011122 has 4 divisors (see below), whose sum is σ = 3030016686. Its totient is φ = 1010005560.

The previous prime is 2020011121. The next prime is 2020011137. The reversal of 2020011122 is 2211100202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211100202 = 21105550101.

It can be written as a sum of positive squares in only one way, i.e., 1825938361 + 194072761 = 42731^2 + 13931^2 .

It is not an unprimeable number, because it can be changed into a prime (2020011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505002779 + ... + 505002782.

Almost surely, 22020011122 is an apocalyptic number.

2020011122 is a deficient number, since it is larger than the sum of its proper divisors (1010005564).

2020011122 is a wasteful number, since it uses less digits than its factorization.

2020011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010005563.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2020011122 is about 44944.5338389442. The cubic root of 2020011122 is about 1264.1091848914.

Adding to 2020011122 its reverse (2211100202), we get a palindrome (4231111324).

The spelling of 2020011122 in words is "two billion, twenty million, eleven thousand, one hundred twenty-two".

Divisors: 1 2 1010005561 2020011122