| Base | Representation |
|---|---|
| bin | 1000001010111… |
| … | …11111101010000 |
| 3 | 11202222201120200 |
| 4 | 10011133331100 |
| 5 | 120022103410 |
| 6 | 10445135200 |
| 7 | 1461445425 |
| oct | 405377520 |
| 9 | 152881520 |
| 10 | 68550480 |
| 11 | 35770a99 |
| 12 | 1ab5a500 |
| 13 | 11281b1b |
| 14 | 9165d4c |
| 15 | 60413c0 |
| hex | 415ff50 |
68550480 has 120 divisors (see below), whose sum is σ = 242380320. Its totient is φ = 17314560.
The previous prime is 68550467. The next prime is 68550481. The reversal of 68550480 is 8405586.
It is a happy number.
68550480 is a `hidden beast` number, since 68 + 550 + 48 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68550481) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11175 + ... + 16185.
It is an arithmetic number, because the mean of its divisors is an integer number (2019836).
Almost surely, 268550480 is an apocalyptic number.
68550480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68550480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121190160).
68550480 is an abundant number, since it is smaller than the sum of its proper divisors (173829840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68550480 is a wasteful number, since it uses less digits than its factorization.
68550480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5049 (or 5040 counting only the distinct ones).
The product of its (nonzero) digits is 38400, while the sum is 36.
The square root of 68550480 is about 8279.5217253172. The cubic root of 68550480 is about 409.2639580343.
It can be divided in two parts, 685504 and 80, that added together give a square (685584 = 8282).
The spelling of 68550480 in words is "sixty-eight million, five hundred fifty thousand, four hundred eighty".
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