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102312030210 = 23513717946771
BaseRepresentation
bin101111101001001000…
…1011011000000000010
3100210002022010122110020
41133102101123000002
53134013334431320
6115000153514310
710251246623235
oct1372221330002
9323068118406
10102312030210
113a432523675
12179b4112996
139856807560
144d4814141c
1529dc1d5940
hex17d245b002

102312030210 has 128 divisors (see below), whose sum is σ = 271561973760. Its totient is φ = 24514963200.

The previous prime is 102312030193. The next prime is 102312030269. The reversal of 102312030210 is 12030213201.

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 102312030210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2164125 + ... + 2210895.

It is an arithmetic number, because the mean of its divisors is an integer number (2121577920).

Almost surely, 2102312030210 is an apocalyptic number.

102312030210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102312030210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135780986880).

102312030210 is an abundant number, since it is smaller than the sum of its proper divisors (169249943550).

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

102312030210 is a wasteful number, since it uses less digits than its factorization.

102312030210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46944.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102312030210 its reverse (12030213201), we get a palindrome (114342243411).

The spelling of 102312030210 in words is "one hundred two billion, three hundred twelve million, thirty thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 71 78 79 130 142 158 195 213 237 355 390 395 426 474 710 790 923 1027 1065 1185 1846 2054 2130 2370 2769 3081 4615 5135 5538 5609 6162 9230 10270 11218 13845 15405 16827 27690 28045 30810 33654 46771 56090 72917 84135 93542 140313 145834 168270 218751 233855 280626 364585 437502 467710 608023 701565 729170 1093755 1216046 1403130 1824069 2187510 3040115 3320741 3648138 3694909 6080230 6641482 7389818 9120345 9962223 11084727 16603705 18240690 18474545 19924446 22169454 33207410 36949090 43169633 48033817 49811115 55423635 86339266 96067634 99622230 110847270 129508899 144101451 215848165 240169085 259017798 262338539 288202902 431696330 480338170 524677078 647544495 720507255 787015617 1295088990 1311692695 1441014510 1574031234 2623385390 3410401007 3935078085 6820802014 7870156170 10231203021 17052005035 20462406042 34104010070 51156015105 102312030210