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12486484438884 = 22325889372
BaseRepresentation
bin1011010110110011110001…
…1110000010111101100100
31122012200210120101011200100
42311230330132002331210
53114034310004021014
642320113423544100
72426055503346531
oct265547436027544
948180716334610
1012486484438884
113a84540a42185
121497b6a45b030
136c76166c5a01
143124c5bcdd88
15169c07213009
hexb5b3c782f64

12486484438884 has 27 divisors (see below), whose sum is σ = 31563111480537. Its totient is φ = 4162154412384.

The previous prime is 12486484438867. The next prime is 12486484438889. The reversal of 12486484438884 is 48883448468421.

The square root of 12486484438884 is 3533622.

It is a perfect power (a square), and thus also a powerful number.

12486484438884 is a `hidden beast` number, since 1 + 2 + 48 + 64 + 8 + 443 + 8 + 8 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3374973152100 + 9111511286784 = 1837110^2 + 3018528^2 .

It is not an unprimeable number, because it can be changed into a prime (12486484438889) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20907264 + ... + 21496200.

Almost surely, 212486484438884 is an apocalyptic number.

12486484438884 is the 3533622-nd square number.

It is an amenable number.

12486484438884 is an abundant number, since it is smaller than the sum of its proper divisors (19076627041653).

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

12486484438884 is an frugal number, since it uses more digits than its factorization.

12486484438884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177884 (or 588942 counting only the distinct ones).

The product of its digits is 1207959552, while the sum is 72.

The spelling of 12486484438884 in words is "twelve trillion, four hundred eighty-six billion, four hundred eighty-four million, four hundred thirty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 588937 1177874 1766811 2355748 3533622 5300433 7067244 10600866 21201732 346846789969 693693579938 1040540369907 1387387159876 2081080739814 3121621109721 4162161479628 6243242219442 12486484438884