Base | Representation |
---|---|
bin | 1000001110000… |
… | …11111011111100 |
3 | 11210202112022221 |
4 | 10013003323330 |
5 | 120123204441 |
6 | 10502015124 |
7 | 1465102360 |
oct | 407037374 |
9 | 153675287 |
10 | 68959996 |
11 | 35a20736 |
12 | 1b1174a4 |
13 | 11396341 |
14 | 92312a0 |
15 | 60c28d1 |
hex | 41c3efc |
68959996 has 48 divisors (see below), whose sum is σ = 145152000. Its totient is φ = 28042560.
The previous prime is 68959937. The next prime is 68959997. The reversal of 68959996 is 69995986.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68959997) 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, 45255 + ... + 46753.
It is an arithmetic number, because the mean of its divisors is an integer number (3024000).
Almost surely, 268959996 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 68959996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72576000).
68959996 is an abundant number, since it is smaller than the sum of its proper divisors (76192004).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68959996 is a wasteful number, since it uses less digits than its factorization.
68959996 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1594 (or 1592 counting only the distinct ones).
The product of its digits is 9447840, while the sum is 61.
The square root of 68959996 is about 8304.2155559691. The cubic root of 68959996 is about 410.0773124084.
The spelling of 68959996 in words is "sixty-eight million, nine hundred fifty-nine thousand, nine hundred ninety-six".
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