Base | Representation |
---|---|
bin | 1000001110000… |
… | …01111010100000 |
3 | 11210202002222010 |
4 | 10013001322200 |
5 | 120122423322 |
6 | 10501512520 |
7 | 1465036254 |
oct | 407017240 |
9 | 153662863 |
10 | 68951712 |
11 | 35a15495 |
12 | 1b112740 |
13 | 1139263b |
14 | 922c264 |
15 | 60c020c |
hex | 41c1ea0 |
68951712 has 48 divisors (see below), whose sum is σ = 183496320. Its totient is φ = 22666752.
The previous prime is 68951693. The next prime is 68951713. The reversal of 68951712 is 21715986.
It is a tau number, because it is divible by the number of its divisors (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68951713) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2089 + ... + 11927.
It is an arithmetic number, because the mean of its divisors is an integer number (3822840).
Almost surely, 268951712 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 68951712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91748160).
68951712 is an abundant number, since it is smaller than the sum of its proper divisors (114544608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68951712 is a wasteful number, since it uses less digits than its factorization.
68951712 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9925 (or 9917 counting only the distinct ones).
The product of its digits is 30240, while the sum is 39.
The square root of 68951712 is about 8303.7167581752. The cubic root of 68951712 is about 410.0608912141.
The spelling of 68951712 in words is "sixty-eight million, nine hundred fifty-one thousand, seven hundred twelve".
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