Search a number
-
+
168746553505230 = 23543893739393097
BaseRepresentation
bin100110010111100101011110…
…011000001111010111001110
3211010111000100110012221110120
4212113211132120033113032
5134104220420144131410
61354521032501445410
750354351622323631
oct4627453630172716
9733430313187416
10168746553505230
114984a014270678
1216b14267410866
1373209687705cc
142d9553bbcbc18
151479742396570
hex99795e60f5ce

168746553505230 has 128 divisors (see below), whose sum is σ = 419179580582400. Its totient is φ = 43447007729664.

The previous prime is 168746553505223. The next prime is 168746553505261. The reversal of 168746553505230 is 32505355647861.

It is a congruent number.

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, 429078042 + ... + 429471138.

It is an arithmetic number, because the mean of its divisors is an integer number (3274840473300).

Almost surely, 2168746553505230 is an apocalyptic number.

168746553505230 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 168746553505230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209589790291200).

168746553505230 is an abundant number, since it is smaller than the sum of its proper divisors (250433027077170).

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

168746553505230 is a wasteful number, since it uses less digits than its factorization.

168746553505230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396978.

The product of its (nonzero) digits is 90720000, while the sum is 60.

The spelling of 168746553505230 in words is "one hundred sixty-eight trillion, seven hundred forty-six billion, five hundred fifty-three million, five hundred five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 89 129 178 215 258 267 430 445 534 645 890 1290 1335 2670 3739 3827 7478 7654 11217 11481 18695 19135 22434 22962 37390 38270 56085 57405 112170 114810 160777 321554 332771 393097 482331 665542 786194 803885 964662 998313 1179291 1607770 1663855 1965485 1996626 2358582 2411655 3327710 3930970 4823310 4991565 5896455 9983130 11792910 14309153 16903171 28618306 33806342 34985633 42927459 50709513 69971266 71545765 84515855 85854918 101419026 104956899 143091530 169031710 174928165 209913798 214637295 253547565 349856330 429274590 507095130 524784495 1049568990 1469789683 1504382219 2939579366 3008764438 4409369049 4513146657 7348948415 7521911095 8818738098 9026293314 14697896830 15043822190 22046845245 22565733285 44093690490 45131466570 63200956369 126401912738 130811281787 189602869107 261622563574 316004781845 379205738214 392433845361 632009563690 654056408935 784867690722 948014345535 1308112817870 1896028691070 1962169226805 3924338453610 5624885116841 11249770233682 16874655350523 28124425584205 33749310701046 56248851168410 84373276752615 168746553505230