Base | Representation |
---|---|
bin | 111111111101000101… |
… | …110110000011100000 |
3 | 20120020202222211211102 |
4 | 333331011312003200 |
5 | 2111114143132331 |
6 | 51314042533532 |
7 | 4650503061011 |
oct | 777505660340 |
9 | 216222884742 |
10 | 68670677216 |
11 | 271398971a9 |
12 | 113858072a8 |
13 | 6624c13a1b |
14 | 3476261008 |
15 | 1bbda7c4cb |
hex | ffd1760e0 |
68670677216 has 48 divisors (see below), whose sum is σ = 140033432448. Its totient is φ = 33114201600.
The previous prime is 68670677177. The next prime is 68670677219. The reversal of 68670677216 is 61277607686.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68670677219) 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, 172526 + ... + 408786.
It is an arithmetic number, because the mean of its divisors is an integer number (2917363176).
Almost surely, 268670677216 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 68670677216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70016716224).
68670677216 is an abundant number, since it is smaller than the sum of its proper divisors (71362755232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68670677216 is a wasteful number, since it uses less digits than its factorization.
68670677216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 236595 (or 236587 counting only the distinct ones).
The product of its (nonzero) digits is 7112448, while the sum is 56.
The spelling of 68670677216 in words is "sixty-eight billion, six hundred seventy million, six hundred seventy-seven thousand, two hundred sixteen".
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