Base | Representation |
---|---|
bin | 11111001111101111100011… |
… | …00101011101011100000000 |
3 | 100000021200011222122110201000 |
4 | 33213313301211131130000 |
5 | 33001223400102304242 |
6 | 402045122354212000 |
7 | 20321115556451160 |
oct | 1747676145353400 |
9 | 300250158573630 |
10 | 68710644963072 |
11 | 1a991025887282 |
12 | 78586bbb84000 |
13 | 2c455031091a8 |
14 | 12d7881d6c5a0 |
15 | 7e24c53cda4c |
hex | 3e7df195d700 |
68710644963072 has 288 divisors, whose sum is σ = 232363484559360. Its totient is φ = 19619189452800.
The previous prime is 68710644963067. The next prime is 68710644963073. The reversal of 68710644963072 is 27036944601786.
It is a happy number.
68710644963072 is a `hidden beast` number, since 6 + 8 + 7 + 10 + 64 + 496 + 3 + 0 + 72 = 666.
It is a tau number, because it is divible by the number of its divisors (288).
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68710644963073) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76143322 + ... + 77040422.
It is an arithmetic number, because the mean of its divisors is an integer number (806817654720).
Almost surely, 268710644963072 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68710644963072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116181742279680).
68710644963072 is an abundant number, since it is smaller than the sum of its proper divisors (163652839596288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68710644963072 is a wasteful number, since it uses less digits than its factorization.
68710644963072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 898716 (or 898696 counting only the distinct ones).
The product of its (nonzero) digits is 73156608, while the sum is 63.
The spelling of 68710644963072 in words is "sixty-eight trillion, seven hundred ten billion, six hundred forty-four million, nine hundred sixty-three thousand, seventy-two".
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