Search a number
-
+
2213133121 = 31173412667
BaseRepresentation
bin1000001111101001…
…1011101101000001
312201020101210220101
42003322123231001
514013030224441
61003335042401
7105562215103
oct20372335501
95636353811
102213133121
11a3628a741
12519210401
1329367c334
1416dcd9573
15ce463231
hex83e9bb41

2213133121 has 8 divisors (see below), whose sum is σ = 2297735424. Its totient is φ = 2129356560.

The previous prime is 2213133089. The next prime is 2213133149. The reversal of 2213133121 is 1213313122.

2213133121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213133121 - 25 = 2213133089 is a prime.

It is a super-2 number, since 2×22131331212 = 9795916422534401282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213133191) 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, 200971 + ... + 211696.

It is an arithmetic number, because the mean of its divisors is an integer number (287216928).

Almost surely, 22213133121 is an apocalyptic number.

It is an amenable number.

2213133121 is a deficient number, since it is larger than the sum of its proper divisors (84602303).

2213133121 is a wasteful number, since it uses less digits than its factorization.

2213133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412871.

The product of its digits is 216, while the sum is 19.

The square root of 2213133121 is about 47043.9488244769. The cubic root of 2213133121 is about 1303.1743178440.

Adding to 2213133121 its reverse (1213313122), we get a palindrome (3426446243).

The spelling of 2213133121 in words is "two billion, two hundred thirteen million, one hundred thirty-three thousand, one hundred twenty-one".

Divisors: 1 31 173 5363 412667 12792677 71391391 2213133121