Base | Representation |
---|---|
bin | 100000000110110000… |
… | …0110100111011100000 |
3 | 20120221222102010202200 |
4 | 1000031200310323200 |
5 | 2112200210422302 |
6 | 51401244013200 |
7 | 4660356624330 |
oct | 1001540647340 |
9 | 216858363680 |
10 | 68946185952 |
11 | 27270362a76 |
12 | 11441b31200 |
13 | 666a018047 |
14 | 34a0a9b0c0 |
15 | 1bd7d4e81c |
hex | 100d834ee0 |
68946185952 has 144 divisors (see below), whose sum is σ = 231802028640. Its totient is φ = 19019621376.
The previous prime is 68946185933. The next prime is 68946185963. The reversal of 68946185952 is 25958164986.
68946185952 is a `hidden beast` number, since 6 + 8 + 9 + 4 + 618 + 5 + 9 + 5 + 2 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a self number, because there is not a number n which added to its sum of digits gives 68946185952.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531183 + ... + 648110.
It is an arithmetic number, because the mean of its divisors is an integer number (1609736310).
Almost surely, 268946185952 is an apocalyptic number.
It is an amenable number.
68946185952 is an abundant number, since it is smaller than the sum of its proper divisors (162855842688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68946185952 is a wasteful number, since it uses less digits than its factorization.
68946185952 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1179345 (or 1179334 counting only the distinct ones).
The product of its digits is 37324800, while the sum is 63.
The spelling of 68946185952 in words is "sixty-eight billion, nine hundred forty-six million, one hundred eighty-five thousand, nine hundred fifty-two".
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