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2660361330 = 23511591071277
BaseRepresentation
bin1001111010010001…
…1110010001110010
320212101221100200010
42132210132101302
520422023030310
61115552435350
7122632461324
oct23644362162
96771840603
102660361330
111145782930
12622b48b56
13335218503
141b3475614
15108855320
hex9e91e472

2660361330 has 128 divisors (see below), whose sum is σ = 7155164160. Its totient is φ = 627587840.

The previous prime is 2660361307. The next prime is 2660361413. The reversal of 2660361330 is 331630662.

2660361330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 2082652 + ... + 2083928.

It is an arithmetic number, because the mean of its divisors is an integer number (55899720).

Almost surely, 22660361330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660361330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577582080).

2660361330 is an abundant number, since it is smaller than the sum of its proper divisors (4494802830).

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

2660361330 is a wasteful number, since it uses less digits than its factorization.

2660361330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 2660361330 is about 51578.6906580615. The cubic root of 2660361330 is about 1385.6287170590.

Adding to 2660361330 its reverse (331630662), we get a palindrome (2991991992).

The spelling of 2660361330 in words is "two billion, six hundred sixty million, three hundred sixty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 59 66 107 110 118 165 177 214 295 321 330 354 535 590 642 649 885 1070 1177 1277 1298 1605 1770 1947 2354 2554 3210 3245 3531 3831 3894 5885 6313 6385 6490 7062 7662 9735 11770 12626 12770 14047 17655 18939 19155 19470 28094 31565 35310 37878 38310 42141 63130 69443 70235 75343 84282 94695 136639 138886 140470 150686 189390 208329 210705 226029 273278 347215 376715 409917 416658 421410 452058 683195 694430 753430 819834 828773 1041645 1130145 1366390 1503029 1657546 2049585 2083290 2260290 2486319 3006058 4099170 4143865 4509087 4972638 7515145 8061701 8287730 9018174 12431595 15030290 16123402 22545435 24185103 24863190 40308505 45090870 48370206 80617010 88678711 120925515 177357422 241851030 266036133 443393555 532072266 886787110 1330180665 2660361330