Search a number
-
+
21214201312230 = 23519353910516501
BaseRepresentation
bin1001101001011010100001…
…11011101111001111100110
32210010001120011110000200020
410310231100323233033212
510240033141013442410
6113041400342100010
74316450453624403
oct464552073571746
983101504400606
1021214201312230
11683998a651203
12246755511a606
13bab64bb03c74
14534ab68a32aa
1526bc6b6bca70
hex134b50eef3e6

21214201312230 has 64 divisors (see below), whose sum is σ = 53608920595200. Its totient is φ = 5357862288000.

The previous prime is 21214201312223. The next prime is 21214201312243. The reversal of 21214201312230 is 3221310241212.

It is a self number, because there is not a number n which added to its sum of digits gives 21214201312230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3241021 + ... + 7275480.

It is an arithmetic number, because the mean of its divisors is an integer number (837639384300).

Almost surely, 221214201312230 is an apocalyptic number.

21214201312230 is an abundant number, since it is smaller than the sum of its proper divisors (32394719282970).

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

21214201312230 is a wasteful number, since it uses less digits than its factorization.

21214201312230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520069.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21214201312230 its reverse (3221310241212), we get a palindrome (24435511553442).

The spelling of 21214201312230 in words is "twenty-one trillion, two hundred fourteen billion, two hundred one million, three hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 3539 7078 10617 17695 21234 35390 53085 67241 106170 134482 201723 336205 403446 672410 1008615 2017230 10516501 21033002 31549503 52582505 63099006 105165010 157747515 199813519 315495030 399627038 599440557 999067595 1198881114 1998135190 2997202785 5994405570 37217897039 74435794078 111653691117 186089485195 223307382234 372178970390 558268455585 707140043741 1116536911170 1414280087482 2121420131223 3535700218705 4242840262446 7071400437410 10607100656115 21214201312230