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2037020121 = 321713313857
BaseRepresentation
bin111100101101010…
…0111010111011001
312020222000100021200
41321122213113121
513132434120441
6534044224413
7101323246113
oct17132472731
95228010250
102037020121
11955932404
1248a23b109
13266039766
141547743b3
15bdc767b6
hex796a75d9

2037020121 has 12 divisors (see below), whose sum is σ = 3115442772. Its totient is φ = 1278130176.

The previous prime is 2037020107. The next prime is 2037020129. The reversal of 2037020121 is 1210207302.

It can be written as a sum of positive squares in 2 ways, for example, as 1174775625 + 862244496 = 34275^2 + 29364^2 .

It is not a de Polignac number, because 2037020121 - 27 = 2037019993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2037020094 and 2037020103.

It is not an unprimeable number, because it can be changed into a prime (2037020129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6656776 + ... + 6657081.

It is an arithmetic number, because the mean of its divisors is an integer number (259620231).

Almost surely, 22037020121 is an apocalyptic number.

It is an amenable number.

2037020121 is a deficient number, since it is larger than the sum of its proper divisors (1078422651).

2037020121 is a wasteful number, since it uses less digits than its factorization.

2037020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13313880 (or 13313877 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2037020121 is about 45133.3592922131. The cubic root of 2037020121 is about 1267.6473112867.

Adding to 2037020121 its reverse (1210207302), we get a palindrome (3247227423).

The spelling of 2037020121 in words is "two billion, thirty-seven million, twenty thousand, one hundred twenty-one".

Divisors: 1 3 9 17 51 153 13313857 39941571 119824713 226335569 679006707 2037020121