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100212231210 = 235713172159281
BaseRepresentation
bin101110101010100011…
…1010100110000101010
3100120122221222210201220
41131111013110300222
53120213312344320
6114011543522510
710145231624250
oct1352507246052
9316587883656
10100212231210
11395552125a3
1217508a59436
1395b078a040
144bc93085d0
152917bace40
hex17551d4c2a

100212231210 has 128 divisors (see below), whose sum is σ = 313424100864. Its totient is φ = 19899924480.

The previous prime is 100212231169. The next prime is 100212231211. The reversal of 100212231210 is 12132212001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100212231210.

It is not an unprimeable number, because it can be changed into a prime (100212231211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1033231 + ... + 1126050.

It is an arithmetic number, because the mean of its divisors is an integer number (2448625788).

Almost surely, 2100212231210 is an apocalyptic number.

100212231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100212231210 is an abundant number, since it is smaller than the sum of its proper divisors (213211869654).

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

100212231210 is a wasteful number, since it uses less digits than its factorization.

100212231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159328.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100212231210 its reverse (12132212001), we get a palindrome (112344443211).

The spelling of 100212231210 in words is "one hundred billion, two hundred twelve million, two hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 10 13 14 15 17 21 26 30 34 35 39 42 51 65 70 78 85 91 102 105 119 130 170 182 195 210 221 238 255 273 357 390 442 455 510 546 595 663 714 910 1105 1190 1326 1365 1547 1785 2210 2730 3094 3315 3570 4641 6630 7735 9282 15470 23205 46410 2159281 4318562 6477843 10796405 12955686 15114967 21592810 28070653 30229934 32389215 36707777 45344901 56141306 64778430 73415554 75574835 84211959 90689802 110123331 140353265 151149670 168423918 183538885 196494571 220246662 226724505 256954439 280706530 367077770 392989142 421059795 453449010 477201101 513908878 550616655 589483713 770863317 842119590 954402202 982472855 1101233310 1178967426 1284772195 1431603303 1541726634 1964945710 2386005505 2569544390 2863206606 2947418565 3340407707 3854316585 4772011010 5894837130 6680815414 7158016515 7708633170 10021223121 14316033030 16702038535 20042446242 33404077070 50106115605 100212231210