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2023022221 = 11183911111
BaseRepresentation
bin111100010010100…
…1101111010001101
312012222200011202221
41320211031322031
513120343202341
6532424215341
7101063255653
oct17045157215
95188604687
102023022221
11948a415a0
1248560a551
1326317828c
1415296cdd3
15bc90ded1
hex7894de8d

2023022221 has 4 divisors (see below), whose sum is σ = 2206933344. Its totient is φ = 1839111100.

The previous prime is 2023022191. The next prime is 2023022231. The reversal of 2023022221 is 1222203202.

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 2023022221 - 211 = 2023020173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2023022195 and 2023022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023022231) 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 in 3 ways as a sum of consecutive naturals, for example, 91955545 + ... + 91955566.

It is an arithmetic number, because the mean of its divisors is an integer number (551733336).

Almost surely, 22023022221 is an apocalyptic number.

It is an amenable number.

2023022221 is a deficient number, since it is larger than the sum of its proper divisors (183911123).

2023022221 is a wasteful number, since it uses less digits than its factorization.

2023022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183911122.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2023022221 is about 44978.0193094360. The cubic root of 2023022221 is about 1264.7369814630.

Adding to 2023022221 its reverse (1222203202), we get a palindrome (3245225423).

The spelling of 2023022221 in words is "two billion, twenty-three million, twenty-two thousand, two hundred twenty-one".

Divisors: 1 11 183911111 2023022221