Search a number
-
+
2021023214 = 27891622009
BaseRepresentation
bin111100001110110…
…0101110111101110
312012211220121122122
41320131211313232
513114340220324
6532313312542
7101040261650
oct17035456756
95184817578
102021023214
119478a6721
12484a05752
13262928432
141525ac6d0
15bc666a5e
hex78765dee

2021023214 has 16 divisors (see below), whose sum is σ = 3503541600. Its totient is φ = 856420224.

The previous prime is 2021023211. The next prime is 2021023247. The reversal of 2021023214 is 4123201202.

It is a junction number, because it is equal to n+sod(n) for n = 2021023192 and 2021023201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021023211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809759 + ... + 812250.

It is an arithmetic number, because the mean of its divisors is an integer number (218971350).

Almost surely, 22021023214 is an apocalyptic number.

2021023214 is a deficient number, since it is larger than the sum of its proper divisors (1482518386).

2021023214 is a wasteful number, since it uses less digits than its factorization.

2021023214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622107.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2021023214 is about 44955.7917736970. The cubic root of 2021023214 is about 1264.3202697325.

Adding to 2021023214 its reverse (4123201202), we get a palindrome (6144224416).

The spelling of 2021023214 in words is "two billion, twenty-one million, twenty-three thousand, two hundred fourteen".

Divisors: 1 2 7 14 89 178 623 1246 1622009 3244018 11354063 22708126 144358801 288717602 1010511607 2021023214