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165130532412 = 223229349172181
BaseRepresentation
bin1001100111001010001…
…0111111011000111100
3120210020020020012100220
42121302202333120330
510201141404014122
6203505424221340
714634042236436
oct2316242773074
9523206205326
10165130532412
116403897609a
1228005a6a850
131275816c411
147dc7073656
1544670ca25c
hex26728bf63c

165130532412 has 48 divisors (see below), whose sum is σ = 388098228000. Its totient is φ = 54645799680.

The previous prime is 165130532389. The next prime is 165130532423. The reversal of 165130532412 is 214235031561.

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, 872962 + ... + 1045142.

It is an arithmetic number, because the mean of its divisors is an integer number (8085379750).

Almost surely, 2165130532412 is an apocalyptic number.

165130532412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165130532412 is an abundant number, since it is smaller than the sum of its proper divisors (222967695588).

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

165130532412 is a wasteful number, since it uses less digits than its factorization.

165130532412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172766 (or 172764 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 165130532412 its reverse (214235031561), we get a palindrome (379365563973).

The spelling of 165130532412 in words is "one hundred sixty-five billion, one hundred thirty million, five hundred thirty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 229 349 458 687 698 916 1047 1374 1396 2094 2748 4188 79921 159842 172181 239763 319684 344362 479526 516543 688724 959052 1033086 2066172 39429449 60091169 78858898 118288347 120182338 157717796 180273507 236576694 240364676 360547014 473153388 721094028 13760877701 27521755402 41282633103 55043510804 82565266206 165130532412