Base | Representation |
---|---|
bin | 1000001100110… |
… | …10011011000000 |
3 | 11210102220002000 |
4 | 10012122123000 |
5 | 120102234302 |
6 | 10454224000 |
7 | 1463463540 |
oct | 406323300 |
9 | 153386060 |
10 | 68789952 |
11 | 35914a00 |
12 | 1b055000 |
13 | 11336b1a |
14 | 91c9320 |
15 | 608c31c |
hex | 419a6c0 |
68789952 has 336 divisors, whose sum is σ = 259445760. Its totient is φ = 17487360.
The previous prime is 68789933. The next prime is 68789953. The reversal of 68789952 is 25998786.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (336).
It is a Harshad number since it is a multiple of its sum of digits (54).
Its product of digits (2177280) is a multiple of the sum of its prime divisors (70).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68789953) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1463593 + ... + 1463639.
It is an arithmetic number, because the mean of its divisors is an integer number (772160).
Almost surely, 268789952 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 68789952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129722880).
68789952 is an abundant number, since it is smaller than the sum of its proper divisors (190655808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68789952 is a wasteful number, since it uses less digits than its factorization.
68789952 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97 (or 70 counting only the distinct ones).
The product of its digits is 2177280, while the sum is 54.
The square root of 68789952 is about 8293.9708222298. The cubic root of 68789952 is about 409.7399739300.
The spelling of 68789952 in words is "sixty-eight million, seven hundred eighty-nine thousand, nine hundred fifty-two".
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