Search a number
-
+
20623345141 = 711872482049
BaseRepresentation
bin10011001101001111…
…110100010111110101
31222020021110111000211
4103031033310113311
5314214034021031
613250233505421
71330031353450
oct231517642765
958207414024
1020623345141
1188233824a3
123bb6872271
131c38888409
14dd8dc8497
1580a84abb1
hex4cd3f45f5

20623345141 has 8 divisors (see below), whose sum is σ = 23589403200. Its totient is φ = 17662253568.

The previous prime is 20623345091. The next prime is 20623345147. The reversal of 20623345141 is 14154332602.

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 20623345141 - 27 = 20623345013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623345147) 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, 1232716 + ... + 1249333.

It is an arithmetic number, because the mean of its divisors is an integer number (2948675400).

Almost surely, 220623345141 is an apocalyptic number.

It is an amenable number.

20623345141 is a deficient number, since it is larger than the sum of its proper divisors (2966058059).

20623345141 is a wasteful number, since it uses less digits than its factorization.

20623345141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483243.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 20623345141 its reverse (14154332602), we get a palindrome (34777677743).

The spelling of 20623345141 in words is "twenty billion, six hundred twenty-three million, three hundred forty-five thousand, one hundred forty-one".

Divisors: 1 7 1187 8309 2482049 17374343 2946192163 20623345141