Search a number
-
+
101001111212 = 221719723332359
BaseRepresentation
bin101111000010000100…
…0101010011010101100
3100122200221102001122202
41132010020222122230
53123322241024322
6114222124201032
710203621165041
oct1360410523254
9318627361582
10101001111212
113991a548841
12176a9099178
1396a8048641
144c61dbb1c8
15296208a292
hex178422a6ac

101001111212 has 48 divisors (see below), whose sum is σ = 188912243520. Its totient is φ = 47084255232.

The previous prime is 101001111187. The next prime is 101001111247. The reversal of 101001111212 is 212111100101.

It is a junction number, because it is equal to n+sod(n) for n = 101001111193 and 101001111202.

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, 3105089 + ... + 3137447.

It is an arithmetic number, because the mean of its divisors is an integer number (3935671740).

Almost surely, 2101001111212 is an apocalyptic number.

It is an amenable number.

101001111212 is a deficient number, since it is larger than the sum of its proper divisors (87911132308).

101001111212 is a wasteful number, since it uses less digits than its factorization.

101001111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32810 (or 32808 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101001111212 its reverse (212111100101), we get a palindrome (313112211313).

The spelling of 101001111212 in words is "one hundred one billion, one million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 197 233 394 466 788 932 3349 3961 6698 7922 13396 15844 32359 45901 64718 91802 129436 183604 550103 780317 1100206 1560634 2200412 3121268 6374723 7539647 12749446 15079294 25498892 30158588 108370291 128173999 216740582 256347998 433481164 512695996 1485310459 2970620918 5941241836 25250277803 50500555606 101001111212