Base | Representation |
---|---|
bin | 1000001001100… |
… | …01011101101000 |
3 | 11202122001100100 |
4 | 10010301131220 |
5 | 120000010130 |
6 | 10441105400 |
7 | 1460023260 |
oct | 404613550 |
9 | 152561310 |
10 | 68360040 |
11 | 35650a01 |
12 | 1aa88260 |
13 | 11216238 |
14 | 91167a0 |
15 | 6004c60 |
hex | 4131768 |
68360040 has 96 divisors (see below), whose sum is σ = 253918080. Its totient is φ = 15624576.
The previous prime is 68360029. The next prime is 68360051. The reversal of 68360040 is 4006386.
It is an interprime number because it is at equal distance from previous prime (68360029) and next prime (68360051).
It is a junction number, because it is equal to n+sod(n) for n = 68359986 and 68360013.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11044 + ... + 16083.
It is an arithmetic number, because the mean of its divisors is an integer number (2644980).
Almost surely, 268360040 is an apocalyptic number.
68360040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68360040 is an abundant number, since it is smaller than the sum of its proper divisors (185558040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68360040 is a wasteful number, since it uses less digits than its factorization.
68360040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27151 (or 27144 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 27.
The square root of 68360040 is about 8268.0130623990. The cubic root of 68360040 is about 408.8846146415.
The spelling of 68360040 in words is "sixty-eight million, three hundred sixty thousand, forty".
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