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2320444231212 = 22319167281216877
BaseRepresentation
bin100001110001000101010…
…000010000111000101100
322012211110202012102121210
4201301011100100320230
5301004232210344322
64533555232554420
7326434525346142
oct41610520207054
98184422172553
102320444231212
11815105302638
123158740b2a10
1313aa80ac78c3
148044acb3592
154056040670c
hex21c45410e2c

2320444231212 has 96 divisors (see below), whose sum is σ = 5753894791680. Its totient is φ = 725788546560.

The previous prime is 2320444231199. The next prime is 2320444231223. The reversal of 2320444231212 is 2121324440232.

It is a super-2 number, since 2×23204442312122 (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2320444231212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10590918 + ... + 10807794.

It is an arithmetic number, because the mean of its divisors is an integer number (59936404080).

Almost surely, 22320444231212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2320444231212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2876947395840).

2320444231212 is an abundant number, since it is smaller than the sum of its proper divisors (3433450560468).

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

2320444231212 is a wasteful number, since it uses less digits than its factorization.

2320444231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217351 (or 217349 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2320444231212 its reverse (2121324440232), we get a palindrome (4441768671444).

The spelling of 2320444231212 in words is "two trillion, three hundred twenty billion, four hundred forty-four million, two hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 167 228 281 334 501 562 668 843 1002 1124 1686 2004 3173 3372 5339 6346 9519 10678 12692 16017 19038 21356 32034 38076 46927 64068 93854 140781 187708 216877 281562 433754 563124 650631 867508 891613 1301262 1783226 2602524 2674839 3566452 4120663 5349678 8241326 10699356 12361989 16482652 24723978 36218459 49447956 60942437 72436918 108655377 121884874 144873836 182827311 217310754 243769748 365654622 434621508 688150721 731309244 1157906303 1376301442 2064452163 2315812606 2752602884 3473718909 4128904326 4631625212 6947437818 8257808652 10177386979 13894875636 20354773958 30532160937 40709547916 61064321874 122128643748 193370352601 386740705202 580111057803 773481410404 1160222115606 2320444231212