Search a number
-
+
120000212011220 = 225172503141007511
BaseRepresentation
bin11011010010001110111010…
…000000101000100011010100
3120201212220112002201022122212
4123102032322000220203110
5111212040413233324340
61103115200353012552
734163505056225522
oct3322167200504324
9521786462638585
10120000212011220
11352658933103a2
1211560a18254158
1351c5c8232b0b8
14218c08129b312
15dd1733083a65
hex6d23ba0288d4

120000212011220 has 48 divisors (see below), whose sum is σ = 266930604396288. Its totient is φ = 45158501122560.

The previous prime is 120000212011189. The next prime is 120000212011223. The reversal of 120000212011220 is 22110212000021.

It is a junction number, because it is equal to n+sod(n) for n = 120000212011195 and 120000212011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000212011223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69652736 + ... + 71354775.

It is an arithmetic number, because the mean of its divisors is an integer number (5561054258256).

Almost surely, 2120000212011220 is an apocalyptic number.

120000212011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120000212011220 is an abundant number, since it is smaller than the sum of its proper divisors (146930392385068).

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

120000212011220 is a wasteful number, since it uses less digits than its factorization.

120000212011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141010040 (or 141010038 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120000212011220 its reverse (22110212000021), we get a palindrome (142110424011241).

The spelling of 120000212011220 in words is "one hundred twenty trillion, two hundred twelve million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2503 5006 10012 12515 25030 42551 50060 85102 170204 212755 425510 851020 141007511 282015022 564030044 705037555 1410075110 2397127687 2820150220 4794255374 9588510748 11985638435 23971276870 47942553740 352941800033 705883600066 1411767200132 1764709000165 3529418000330 6000010600561 7058836000660 12000021201122 24000042402244 30000053002805 60000106005610 120000212011220