Search a number
-
+
2312123230020 = 223550383764849
BaseRepresentation
bin100001101001010101010…
…010001010011101000100
322012000222211202202212110
4201221111102022131010
5300340212021330040
64530101425021020
7326021366120352
oct41512522123504
98160884682773
102312123230020
1181162531724a
12314131484770
1313a055c12966
147dc9bb2a7d2
1540224b4e980
hex21a5548a744

2312123230020 has 48 divisors (see below), whose sum is σ = 6474082003200. Its totient is φ = 616553150976.

The previous prime is 2312123229937. The next prime is 2312123230091. The reversal of 2312123230020 is 200323212132.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2640556 + ... + 3405404.

It is an arithmetic number, because the mean of its divisors is an integer number (134876708400).

Almost surely, 22312123230020 is an apocalyptic number.

2312123230020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312123230020 is an abundant number, since it is smaller than the sum of its proper divisors (4161958773180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2312123230020 is a wasteful number, since it uses less digits than its factorization.

2312123230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815244 (or 815242 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2312123230020 its reverse (200323212132), we get a palindrome (2512446442152).

The spelling of 2312123230020 in words is "two trillion, three hundred twelve billion, one hundred twenty-three million, two hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 50383 100766 151149 201532 251915 302298 503830 604596 755745 764849 1007660 1511490 1529698 2294547 3022980 3059396 3824245 4589094 7648490 9178188 11472735 15296980 22945470 45890940 38535387167 77070774334 115606161501 154141548668 192676935835 231212323002 385353871670 462424646004 578030807505 770707743340 1156061615010 2312123230020