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12506661263214 = 2325930373877681
BaseRepresentation
bin1011010111111110111100…
…0110100001011101101110
31122021121212201122001022100
42311333233012201131232
53114402120240410324
642333251511155530
72430401503464336
oct265775706413556
948247781561270
1012506661263214
113a92055264a08
12149ba5b675ba6
136c94b0901c11
1431347b7840c6
1516a4d875b4c9
hexb5fef1a176e

12506661263214 has 48 divisors (see below), whose sum is σ = 27566131123440. Its totient is φ = 4096877495040.

The previous prime is 12506661263191. The next prime is 12506661263287. The reversal of 12506661263214 is 41236216660521.

It is a self number, because there is not a number n which added to its sum of digits gives 12506661263214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1286454 + ... + 5164134.

It is an arithmetic number, because the mean of its divisors is an integer number (574294398405).

Almost surely, 212506661263214 is an apocalyptic number.

12506661263214 is an abundant number, since it is smaller than the sum of its proper divisors (15059469860226).

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

12506661263214 is a wasteful number, since it uses less digits than its factorization.

12506661263214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880785 (or 3880782 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 12506661263214 in words is "twelve trillion, five hundred six billion, six hundred sixty-one million, two hundred sixty-three thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 59 118 177 354 531 1062 3037 6074 9111 18222 27333 54666 179183 358366 537549 1075098 1612647 3225294 3877681 7755362 11633043 23266086 34899129 69798258 228783179 457566358 686349537 1372699074 2059048611 4118097222 11776517197 23553034394 35329551591 70659103182 105988654773 211977309546 694814514623 1389629029246 2084443543869 4168887087738 6253330631607 12506661263214