Base | Representation |
---|---|
bin | 1000000111100… |
… | …01010001000010 |
3 | 11202010200122110 |
4 | 10003301101002 |
5 | 114413101330 |
6 | 10431320150 |
7 | 1454546535 |
oct | 403612102 |
9 | 152120573 |
10 | 68097090 |
11 | 35491396 |
12 | 1a980056 |
13 | 11153649 |
14 | 9088a1c |
15 | 5ea1db0 |
hex | 40f1442 |
68097090 has 16 divisors (see below), whose sum is σ = 163433088. Its totient is φ = 18159216.
The previous prime is 68097059. The next prime is 68097097. The reversal of 68097090 is 9079086.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (68097097) 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, 1134922 + ... + 1134981.
It is an arithmetic number, because the mean of its divisors is an integer number (10214568).
Almost surely, 268097090 is an apocalyptic number.
68097090 is an abundant number, since it is smaller than the sum of its proper divisors (95335998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68097090 is a wasteful number, since it uses less digits than its factorization.
68097090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2269913.
The product of its (nonzero) digits is 27216, while the sum is 39.
The square root of 68097090 is about 8252.0960973561. The cubic root of 68097090 is about 408.3596765827.
The spelling of 68097090 in words is "sixty-eight million, ninety-seven thousand, ninety".
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