Search a number
-
+
20023332031 = 59714779979
BaseRepresentation
bin10010101001011110…
…111100110010111111
31220200110102122210001
4102221132330302333
5312001433111111
613110521255131
71306124341213
oct225136746277
956613378701
1020023332031
11854571579a
123a699344a7
131b71486881
14d7d43a943
157c2d291c1
hex4a97bccbf

20023332031 has 8 divisors (see below), whose sum is σ = 20649513600. Its totient is φ = 19406710680.

The previous prime is 20023332011. The next prime is 20023332181. The reversal of 20023332031 is 13023332002.

It is a happy number.

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 20023332031 - 27 = 20023331903 is a prime.

It is a super-3 number, since 3×200233320313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023332011) 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, 2385801 + ... + 2394178.

It is an arithmetic number, because the mean of its divisors is an integer number (2581189200).

Almost surely, 220023332031 is an apocalyptic number.

20023332031 is a deficient number, since it is larger than the sum of its proper divisors (626181569).

20023332031 is an equidigital number, since it uses as much as digits as its factorization.

20023332031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780109.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20023332031 its reverse (13023332002), we get a palindrome (33046664033).

The spelling of 20023332031 in words is "twenty billion, twenty-three million, three hundred thirty-two thousand, thirty-one".

Divisors: 1 59 71 4189 4779979 282018761 339378509 20023332031