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21010032332200 = 23521317459107509
BaseRepresentation
bin1001100011011110001111…
…00000111000110110101000
32202101112120021111012201001
410301233013200320312220
510223212021234112300
6112403513044204344
74265632121133562
oct461570740706650
982345507435631
1021010032332200
11677033958066a
122433a753996b4
13b95311b7a402
14528c68c42332
152667bc24516a
hex131bc7838da8

21010032332200 has 96 divisors (see below), whose sum is σ = 49228269948000. Its totient is φ = 8338664505600.

The previous prime is 21010032332153. The next prime is 21010032332213. The reversal of 21010032332200 is 223323001012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195372046 + ... + 195479554.

It is an arithmetic number, because the mean of its divisors is an integer number (512794478625).

Almost surely, 221010032332200 is an apocalyptic number.

21010032332200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21010032332200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24614134974000).

21010032332200 is an abundant number, since it is smaller than the sum of its proper divisors (28218237615800).

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

21010032332200 is a wasteful number, since it uses less digits than its factorization.

21010032332200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115115 (or 115106 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21010032332200 its reverse (223323001012), we get a palindrome (21233355333212).

The spelling of 21010032332200 in words is "twenty-one trillion, ten billion, thirty-two million, three hundred thirty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 131 200 262 524 655 1048 1310 2620 3275 5240 6550 7459 13100 14918 26200 29836 37295 59672 74590 107509 149180 186475 215018 298360 372950 430036 537545 745900 860072 977129 1075090 1491800 1954258 2150180 2687725 3908516 4300360 4885645 5375450 7817032 9771290 10750900 14083679 19542580 21501800 24428225 28167358 39085160 48856450 56334716 70418395 97712900 112669432 140836790 195425800 281673580 352091975 563347160 704183950 801909631 1408367900 1603819262 2816735800 3207638524 4009548155 6415277048 8019096310 16038192620 20047740775 32076385240 40095481550 80190963100 105050161661 160381926200 210100323322 420200646644 525250808305 840401293288 1050501616610 2101003233220 2626254041525 4202006466440 5252508083050 10505016166100 21010032332200