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2020013012 = 22691773009
BaseRepresentation
bin111100001100110…
…1111001111010100
312012210000021220202
41320121233033110
513114110404022
6532235520032
7101025553523
oct17031571724
95183007822
102020013012
11947276746
124845b9018
13262663694
141523c84ba
15bc517592
hex7866f3d4

2020013012 has 12 divisors (see below), whose sum is σ = 3535582260. Its totient is φ = 1009846656.

The previous prime is 2020013011. The next prime is 2020013071. The reversal of 2020013012 is 2103100202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 811338256 + 1208674756 = 28484^2 + 34766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2020012984 and 2020013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020013011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8837 + ... + 64172.

It is an arithmetic number, because the mean of its divisors is an integer number (294631855).

Almost surely, 22020013012 is an apocalyptic number.

It is an amenable number.

2020013012 is a deficient number, since it is larger than the sum of its proper divisors (1515569248).

2020013012 is a wasteful number, since it uses less digits than its factorization.

2020013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79930 (or 79928 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2020013012 is about 44944.5548648554. The cubic root of 2020013012 is about 1264.1095791410.

Adding to 2020013012 its reverse (2103100202), we get a palindrome (4123113214).

The spelling of 2020013012 in words is "two billion, twenty million, thirteen thousand, twelve".

Divisors: 1 2 4 6917 13834 27668 73009 146018 292036 505003253 1010006506 2020013012