Base | Representation |
---|---|
bin | 1000001110010… |
… | …01101011000000 |
3 | 11210210201120000 |
4 | 10013021223000 |
5 | 120124432423 |
6 | 10502320000 |
7 | 1465231020 |
oct | 407115300 |
9 | 153721500 |
10 | 68983488 |
11 | 35a37352 |
12 | 1b129000 |
13 | 113a3c42 |
14 | 9239a80 |
15 | 60c9843 |
hex | 41c9ac0 |
68983488 has 140 divisors (see below), whose sum is σ = 233824272. Its totient is φ = 19699200.
The previous prime is 68983487. The next prime is 68983493. The reversal of 68983488 is 88438986.
68983488 is a `hidden beast` number, since 6 + 89 + 83 + 488 = 666.
It is a super-2 number, since 2×689834882 = 9517443233292288, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (68983483) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35338 + ... + 37238.
Almost surely, 268983488 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 68983488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116912136).
68983488 is an abundant number, since it is smaller than the sum of its proper divisors (164840784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68983488 is a wasteful number, since it uses less digits than its factorization.
68983488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1932 (or 1913 counting only the distinct ones).
The product of its digits is 2654208, while the sum is 54.
The square root of 68983488 is about 8305.6298978464. The cubic root of 68983488 is about 410.1238729414.
The spelling of 68983488 in words is "sixty-eight million, nine hundred eighty-three thousand, four hundred eighty-eight".
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