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12420100412 = 228337409941
BaseRepresentation
bin10111001000100101…
…11011000100111100
31012001120121110202222
423210102323010330
5200414021203122
65412233504512
7616532053166
oct134422730474
935046543688
1012420100412
1152a39062a5
1224a7572138
13122c1c3155
1485b735936
154ca5a4b42
hex2e44bb13c

12420100412 has 12 divisors (see below), whose sum is σ = 21997045896. Its totient is φ = 6135230160.

The previous prime is 12420100403. The next prime is 12420100447. The reversal of 12420100412 is 21400102421.

12420100412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 18704639 + ... + 18705302.

It is an arithmetic number, because the mean of its divisors is an integer number (1833087158).

Almost surely, 212420100412 is an apocalyptic number.

It is an amenable number.

12420100412 is a deficient number, since it is larger than the sum of its proper divisors (9576945484).

12420100412 is a wasteful number, since it uses less digits than its factorization.

12420100412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37410028 (or 37410026 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12420100412 its reverse (21400102421), we get a palindrome (33820202833).

The spelling of 12420100412 in words is "twelve billion, four hundred twenty million, one hundred thousand, four hundred twelve".

Divisors: 1 2 4 83 166 332 37409941 74819882 149639764 3105025103 6210050206 12420100412