Search a number
-
+
2021033093 = 8922708237
BaseRepresentation
bin111100001110110…
…1000010010000101
312012211221010012112
41320131220102011
513114341024333
6532313430405
7101040332522
oct17035502205
95184833175
102021033093
11947903092
12484a0b405
1326292ca91
141525b2149
15bc669948
hex78768485

2021033093 has 4 divisors (see below), whose sum is σ = 2043741420. Its totient is φ = 1998324768.

The previous prime is 2021033081. The next prime is 2021033107. The reversal of 2021033093 is 3903301202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1297584484 + 723448609 = 36022^2 + 26897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2021033093 is a prime.

It is a super-2 number, since 2×20210330932 = 8169149526002293298, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021033033) 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, 11354030 + ... + 11354207.

It is an arithmetic number, because the mean of its divisors is an integer number (510935355).

Almost surely, 22021033093 is an apocalyptic number.

It is an amenable number.

2021033093 is a deficient number, since it is larger than the sum of its proper divisors (22708327).

2021033093 is an equidigital number, since it uses as much as digits as its factorization.

2021033093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22708326.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 2021033093 is about 44955.9016481707. The cubic root of 2021033093 is about 1264.3223297780.

Adding to 2021033093 its reverse (3903301202), we get a palindrome (5924334295).

The spelling of 2021033093 in words is "two billion, twenty-one million, thirty-three thousand, ninety-three".

Divisors: 1 89 22708237 2021033093