Search a number
-
+
20023213101 = 343115485857
BaseRepresentation
bin10010101001011110…
…011111110000101101
31220200110012121122020
4102221132133300231
5312001420304401
613110514540353
71306123334403
oct225136376055
956613177566
1020023213101
118545644401
123a698976b9
131b714446b8
14d7d409473
157c2d03d36
hex4a979fc2d

20023213101 has 8 divisors (see below), whose sum is σ = 26759562624. Its totient is φ = 13317836160.

The previous prime is 20023213057. The next prime is 20023213157. The reversal of 20023213101 is 10131232002.

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

It is not a de Polignac number, because 20023213101 - 223 = 20014824493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023213181) 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, 7741636 + ... + 7744221.

It is an arithmetic number, because the mean of its divisors is an integer number (3344945328).

Almost surely, 220023213101 is an apocalyptic number.

It is an amenable number.

20023213101 is a deficient number, since it is larger than the sum of its proper divisors (6736349523).

20023213101 is a wasteful number, since it uses less digits than its factorization.

20023213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15486291.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20023213101 its reverse (10131232002), we get a palindrome (30154445103).

The spelling of 20023213101 in words is "twenty billion, twenty-three million, two hundred thirteen thousand, one hundred one".

Divisors: 1 3 431 1293 15485857 46457571 6674404367 20023213101