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12178006854052 = 22131724157161933
BaseRepresentation
bin1011000100110110100111…
…0001011100100110100100
31121010012120020101012210211
42301031221301130212210
53044011024223312202
641522255450425204
72364555235215334
oct261155161344644
947105506335724
1012178006854052
113975733430a26
121448219a32204
136a44c5419720
143015c0bc50c4
15161ba066c1d7
hexb1369c5c9a4

12178006854052 has 48 divisors (see below), whose sum is σ = 24401743681392. Its totient is φ = 5268043653120.

The previous prime is 12178006854047. The next prime is 12178006854053. The reversal of 12178006854052 is 25045860087121.

It can be written as a sum of positive squares in 8 ways, for example, as 308975892736 + 11869030961316 = 555856^2 + 3445146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12178006853987 and 12178006854005.

It is not an unprimeable number, because it can be changed into a prime (12178006854053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28367923 + ... + 28794010.

It is an arithmetic number, because the mean of its divisors is an integer number (508369660029).

Almost surely, 212178006854052 is an apocalyptic number.

It is an amenable number.

12178006854052 is an abundant number, since it is smaller than the sum of its proper divisors (12223736827340).

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

12178006854052 is a wasteful number, since it uses less digits than its factorization.

12178006854052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57162208 (or 57162206 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 12178006854052 in words is "twelve trillion, one hundred seventy-eight billion, six million, eight hundred fifty-four thousand, fifty-two".

Divisors: 1 2 4 13 17 26 34 52 68 221 241 442 482 884 964 3133 4097 6266 8194 12532 16388 53261 106522 213044 57161933 114323866 228647732 743105129 971752861 1486210258 1943505722 2972420516 3887011444 12632787193 13776025853 25265574386 27552051706 50531148772 55104103412 179088336089 234192439501 358176672178 468384879002 716353344356 936769758004 3044501713513 6089003427026 12178006854052