Search a number
-
+
12430040212 = 22171104716547
BaseRepresentation
bin10111001001110001…
…10101110010010100
31012002021022110121201
423210320311302110
5200424042241322
65413230522244
7620012412202
oct134470656224
935067273551
1012430040212
1152a9485207
1224aa966384
1312312934a5
1485cba2072
154cb3b9d27
hex2e4e35c94

12430040212 has 24 divisors (see below), whose sum is σ = 23035610304. Its totient is φ = 5848547712.

The previous prime is 12430040191. The next prime is 12430040237. The reversal of 12430040212 is 21204003421.

12430040212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12430040212.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 742923 + ... + 759469.

It is an arithmetic number, because the mean of its divisors is an integer number (959817096).

Almost surely, 212430040212 is an apocalyptic number.

It is an amenable number.

12430040212 is a deficient number, since it is larger than the sum of its proper divisors (10605570092).

12430040212 is a wasteful number, since it uses less digits than its factorization.

12430040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27615 (or 27613 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12430040212 its reverse (21204003421), we get a palindrome (33634043633).

The spelling of 12430040212 in words is "twelve billion, four hundred thirty million, forty thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 11047 16547 22094 33094 44188 66188 187799 281299 375598 562598 751196 1125196 182794709 365589418 731178836 3107510053 6215020106 12430040212