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102071008770 = 23543538317987
BaseRepresentation
bin101111100001111100…
…1111111111000000010
3100202110111121111012020
41133003321333320002
53133020134240040
6114520223542310
710242262154643
oct1370371777002
9322414544166
10102071008770
113a3194726a5
121794745a996
1398188b9813
144d241216ca
1529c5e76cd0
hex17c3e7fe02

102071008770 has 128 divisors (see below), whose sum is σ = 258488423424. Its totient is φ = 25768614144.

The previous prime is 102071008733. The next prime is 102071008801. The reversal of 102071008770 is 77800170201.

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, 5665717 + ... + 5683703.

It is an arithmetic number, because the mean of its divisors is an integer number (2019440808).

Almost surely, 2102071008770 is an apocalyptic number.

102071008770 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 102071008770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129244211712).

102071008770 is an abundant number, since it is smaller than the sum of its proper divisors (156417414654).

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

102071008770 is a wasteful number, since it uses less digits than its factorization.

102071008770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18176.

The product of its (nonzero) digits is 5488, while the sum is 33.

Adding to 102071008770 its reverse (77800170201), we get a palindrome (179871178971).

The spelling of 102071008770 in words is "one hundred two billion, seventy-one million, eight thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 43 53 83 86 106 129 159 166 215 249 258 265 318 415 430 498 530 645 795 830 1245 1290 1590 2279 2490 3569 4399 4558 6837 7138 8798 10707 11395 13197 13674 17845 17987 21414 21995 22790 26394 34185 35690 35974 43990 53535 53961 65985 68370 89935 107070 107922 131970 179870 189157 269805 378314 539610 567471 773441 945785 953311 1134942 1492921 1546882 1891570 1906622 2320323 2837355 2859933 2985842 3867205 4478763 4640646 4766555 5674710 5719866 7464605 7734410 8957526 9533110 11601615 14299665 14929210 22393815 23203230 28599330 40992373 44787630 64195603 79124813 81984746 122977119 128391206 158249626 192586809 204961865 237374439 245954238 320978015 385173618 395624065 409923730 474748878 614885595 641956030 791248130 962934045 1186872195 1229771190 1925868090 2373744390 3402366959 6804733918 10207100877 17011834795 20414201754 34023669590 51035504385 102071008770