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2020133321 = 3165165591
BaseRepresentation
bin111100001101000…
…1100100111001001
312012210020101221122
41320122030213021
513114123231241
6532242245025
7101026564343
oct17032144711
95183211848
102020133321
11947349078
12484656775
132626a637b
1415241a293
15bc53d04b
hex7868c9c9

2020133321 has 4 divisors (see below), whose sum is σ = 2085298944. Its totient is φ = 1954967700.

The previous prime is 2020133299. The next prime is 2020133327. The reversal of 2020133321 is 1233310202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020133321 - 230 = 946391497 is a prime.

It is a super-2 number, since 2×20201333212 = 8161877269228978082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020133321.

It is not an unprimeable number, because it can be changed into a prime (2020133327) 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, 32582765 + ... + 32582826.

It is an arithmetic number, because the mean of its divisors is an integer number (521324736).

Almost surely, 22020133321 is an apocalyptic number.

It is an amenable number.

2020133321 is a deficient number, since it is larger than the sum of its proper divisors (65165623).

2020133321 is an equidigital number, since it uses as much as digits as its factorization.

2020133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65165622.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2020133321 is about 44945.8932606751. The cubic root of 2020133321 is about 1264.1346748111.

Adding to 2020133321 its reverse (1233310202), we get a palindrome (3253443523).

The spelling of 2020133321 in words is "two billion, twenty million, one hundred thirty-three thousand, three hundred twenty-one".

Divisors: 1 31 65165591 2020133321