Search a number
-
+
23210143001 = 42155130981
BaseRepresentation
bin10101100111011011…
…101010110100011001
32012220112222102120222
4111213123222310121
5340013244034001
614355041525425
71451111650253
oct254733526431
965815872528
1023210143001
11993057aa71
1245b9043875
13225b788136
1411a2790cd3
1590c9be61b
hex5676ead19

23210143001 has 4 divisors (see below), whose sum is σ = 23265274404. Its totient is φ = 23155011600.

The previous prime is 23210142983. The next prime is 23210143013. The reversal of 23210143001 is 10034101232.

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 10185855625 + 13024287376 = 100925^2 + 114124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23210143001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23210343001) 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, 27565070 + ... + 27565911.

It is an arithmetic number, because the mean of its divisors is an integer number (5816318601).

Almost surely, 223210143001 is an apocalyptic number.

It is an amenable number.

23210143001 is a deficient number, since it is larger than the sum of its proper divisors (55131403).

23210143001 is an equidigital number, since it uses as much as digits as its factorization.

23210143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55131402.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23210143001 its reverse (10034101232), we get a palindrome (33244244233).

The spelling of 23210143001 in words is "twenty-three billion, two hundred ten million, one hundred forty-three thousand, one".

Divisors: 1 421 55130981 23210143001