Search a number
-
+
212133203131000 = 23532954171350367
BaseRepresentation
bin110000001110111100011100…
…001101111011101001111000
31000211002201212122220022200011
4300032330130031323221320
5210301042300000143000
62031100352000551304
762453055346264654
oct6016743415735170
91024081778808604
10212133203131000
1161657205958a88
121b960a04622534
13914a0c9349c78
143a5543226da64
15197d11113e2ba
hexc0ef1c37ba78

212133203131000 has 128 divisors (see below), whose sum is σ = 513603826444800. Its totient is φ = 81912121267200.

The previous prime is 212133203130997. The next prime is 212133203131027. The reversal of 212133203131000 is 131302331212.

It is a super-2 number, since 2×2121332031310002 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 156417817 + ... + 157768183.

It is an arithmetic number, because the mean of its divisors is an integer number (4012529894100).

Almost surely, 2212133203131000 is an apocalyptic number.

212133203131000 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 212133203131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256801913222400).

212133203131000 is an abundant number, since it is smaller than the sum of its proper divisors (301470623313800).

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

212133203131000 is a wasteful number, since it uses less digits than its factorization.

212133203131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355834 (or 1355820 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212133203131000 its reverse (131302331212), we get a palindrome (212264505462212).

The spelling of 212133203131000 in words is "two hundred twelve trillion, one hundred thirty-three billion, two hundred three million, one hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 29 40 50 58 100 116 125 145 200 232 250 290 500 580 725 1000 1160 1450 2900 3625 5417 5800 7250 10834 14500 21668 27085 29000 43336 54170 108340 135425 157093 216680 270850 314186 541700 628372 677125 785465 1083400 1256744 1350367 1354250 1570930 2700734 2708500 3141860 3927325 5401468 5417000 6283720 6751835 7854650 10802936 13503670 15709300 19636625 27007340 31418600 33759175 39160643 39273250 54014680 67518350 78321286 78546500 135036700 156642572 157093000 168795875 195803215 270073400 313285144 337591750 391606430 675183500 783212860 979016075 1350367000 1566425720 1958032150 3916064300 4895080375 7314938039 7832128600 9790160750 14629876078 19580321500 29259752156 36574690195 39160643000 58519504312 73149380390 146298760780 182873450975 212133203131 292597521560 365746901950 424266406262 731493803900 848532812524 914367254875 1060666015655 1462987607800 1697065625048 1828734509750 2121332031310 3657469019500 4242664062620 5303330078275 7314938039000 8485328125240 10606660156550 21213320313100 26516650391375 42426640626200 53033300782750 106066601565500 212133203131000