Search a number
-
+
212020020012 = 223773229569
BaseRepresentation
bin1100010101110101100…
…0001100001100101100
3202021021001001222010210
43011131120030030230
511433204111120022
6241222312502420
721214024302063
oct3053530141454
9667231058123
10212020020012
1181a0a857139
12351110aaa10
1316cbb673258
14a3946311da
1557ad84ba0c
hex315d60c32c

212020020012 has 36 divisors (see below), whose sum is σ = 495370951880. Its totient is φ = 70579525632.

The previous prime is 212020020001. The next prime is 212020020029. The reversal of 212020020012 is 210020020212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 212020020012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7155564 + ... + 7185132.

Almost surely, 2212020020012 is an apocalyptic number.

It is an amenable number.

212020020012 is an abundant number, since it is smaller than the sum of its proper divisors (283350931868).

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

212020020012 is an equidigital number, since it uses as much as digits as its factorization.

212020020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31122 (or 30347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212020020012 its reverse (210020020212), we get a palindrome (422040040224).

The spelling of 212020020012 in words is "two hundred twelve billion, twenty million, twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 773 1546 2319 3092 4638 9276 29569 59138 88707 118276 177414 354828 597529 1195058 1792587 2390116 3585174 7170348 22856837 45713674 68570511 91427348 137141022 274282044 17668335001 35336670002 53005005003 70673340004 106010010006 212020020012