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102230131312 = 24176121129201
BaseRepresentation
bin101111100110101100…
…1000000001001110000
3100202212121000202021201
41133031121000021300
53133331403200222
6114544110300544
710246233531031
oct1371531001160
9322777022251
10102230131312
113a3a0275831
12179907b7754
139842860a7a
144d3b302a88
1529d4e09427
hex17cd640270

102230131312 has 80 divisors (see below), whose sum is σ = 214177747104. Its totient is φ = 47093760000.

The previous prime is 102230131309. The next prime is 102230131321. The reversal of 102230131312 is 213131032201.

It is a self number, because there is not a number n which added to its sum of digits gives 102230131312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3486312 + ... + 3515512.

Almost surely, 2102230131312 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 102230131312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107088873552).

102230131312 is an abundant number, since it is smaller than the sum of its proper divisors (111947615792).

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

102230131312 is a wasteful number, since it uses less digits than its factorization.

102230131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29498 (or 29492 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102230131312 its reverse (213131032201), we get a palindrome (315361163513).

The spelling of 102230131312 in words is "one hundred two billion, two hundred thirty million, one hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 17 34 61 68 122 136 211 244 272 422 488 844 976 1037 1688 2074 3376 3587 4148 7174 8296 12871 14348 16592 25742 28696 29201 51484 57392 58402 102968 116804 205936 218807 233608 437614 467216 496417 875228 992834 1750456 1781261 1985668 3500912 3562522 3971336 6161411 7125044 7942672 12322822 14250088 24645644 28500176 30281437 49291288 60562874 98582576 104743987 121125748 209487974 242251496 375846071 418975948 484502992 751692142 837951896 1503384284 1675903792 3006768568 6013537136 6389383207 12778766414 25557532828 51115065656 102230131312