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164712137280 = 2635193188853
BaseRepresentation
bin1001100101100110011…
…0111100001001000000
3120202011001221112010220
42121121212330021000
510144312301343110
6203400120423040
714620502031525
oct2313146741100
9522131845126
10164712137280
1163943786699
1227b09917a80
13126bc58a032
147d8768114c
1544404d1370
hex26599bc240

164712137280 has 112 divisors (see below), whose sum is σ = 523237748544. Its totient is φ = 43899996160.

The previous prime is 164712137263. The next prime is 164712137299. The reversal of 164712137280 is 82731217461.

164712137280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1809334 + ... + 1898186.

It is an arithmetic number, because the mean of its divisors is an integer number (4671765612).

Almost surely, 2164712137280 is an apocalyptic number.

164712137280 is a gapful number since it is divisible by the number (10) 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 164712137280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261618874272).

164712137280 is an abundant number, since it is smaller than the sum of its proper divisors (358525611264).

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

164712137280 is a wasteful number, since it uses less digits than its factorization.

164712137280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90804 (or 90794 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 164712137280 in words is "one hundred sixty-four billion, seven hundred twelve million, one hundred thirty-seven thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 1931 3862 5793 7724 9655 11586 15448 19310 23172 28965 30896 38620 46344 57930 61792 77240 88853 92688 115860 123584 154480 177706 185376 231720 266559 308960 355412 370752 444265 463440 533118 617920 710824 888530 926880 1066236 1332795 1421648 1777060 1853760 2132472 2665590 2843296 3554120 4264944 5331180 5686592 7108240 8529888 10662360 14216480 17059776 21324720 28432960 42649440 85298880 171575143 343150286 514725429 686300572 857875715 1029450858 1372601144 1715751430 2058901716 2573627145 2745202288 3431502860 4117803432 5147254290 5490404576 6863005720 8235606864 10294508580 10980809152 13726011440 16471213728 20589017160 27452022880 32942427456 41178034320 54904045760 82356068640 164712137280