Search a number
-
+
10111210212 = 223842600851
BaseRepresentation
bin10010110101010110…
…01101001011100100
3222002200000200212010
421122223031023210
5131201432211322
64351154154220
7505364603655
oct113253151344
928080020763
1010111210212
114319572984
121b62282970
13c51a5762c
146bcc3152c
153e2a2920c
hex25aacd2e4

10111210212 has 12 divisors (see below), whose sum is σ = 23592823856. Its totient is φ = 3370403400.

The previous prime is 10111210199. The next prime is 10111210231. The reversal of 10111210212 is 21201211101.

10111210212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 842600851 = 10111210212 / (1 + 0 + 1 + 1 + 1 + 2 + 1 + 0 + 2 + 1 + 2).

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 3 ways as a sum of consecutive naturals, for example, 421300414 + ... + 421300437.

Almost surely, 210111210212 is an apocalyptic number.

10111210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10111210212 is an abundant number, since it is smaller than the sum of its proper divisors (13481613644).

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

10111210212 is a wasteful number, since it uses less digits than its factorization.

10111210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842600858 (or 842600856 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10111210212 its reverse (21201211101), we get a palindrome (31312421313).

The spelling of 10111210212 in words is "ten billion, one hundred eleven million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 842600851 1685201702 2527802553 3370403404 5055605106 10111210212