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68471545012 = 22132116839137
BaseRepresentation
bin111111110001001110…
…001101110010110100
320112201220021212210121
4333301032031302310
52110212203420022
651242210501324
74642534346443
oct776116156264
9215656255717
1068471545012
1127047447232
121132ab94844
1365c28a1710
143457a26d5a
151bab3452c7
hexff138dcb4

68471545012 has 48 divisors (see below), whose sum is σ = 129858144192. Its totient is φ = 31402990080.

The previous prime is 68471544941. The next prime is 68471545019. The reversal of 68471545012 is 21054517486.

It is a self number, because there is not a number n which added to its sum of digits gives 68471545012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68471545019) 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, 7489308 + ... + 7498444.

It is an arithmetic number, because the mean of its divisors is an integer number (2705378004).

Almost surely, 268471545012 is an apocalyptic number.

It is an amenable number.

68471545012 is a deficient number, since it is larger than the sum of its proper divisors (61386599180).

68471545012 is a wasteful number, since it uses less digits than its factorization.

68471545012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048 (or 10046 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 68471545012 in words is "sixty-eight billion, four hundred seventy-one million, five hundred forty-five thousand, twelve".

Divisors: 1 2 4 13 26 52 211 422 683 844 1366 2732 2743 5486 8879 9137 10972 17758 18274 35516 36548 118781 144113 237562 288226 475124 576452 1873469 1927907 3746938 3855814 6240571 7493876 7711628 12481142 24962284 25062791 50125582 81127423 100251164 162254846 324509692 1316760481 2633520962 5267041924 17117886253 34235772506 68471545012