Base | Representation |
---|---|
bin | 1000001101100… |
… | …00101000000001 |
3 | 11210121111211100 |
4 | 10012300220001 |
5 | 120113142042 |
6 | 10500205013 |
7 | 1464322641 |
oct | 406605001 |
9 | 153544740 |
10 | 68880897 |
11 | 35977268 |
12 | 1b099769 |
13 | 11369337 |
14 | 9210521 |
15 | 60a924c |
hex | 41b0a01 |
68880897 has 12 divisors (see below), whose sum is σ = 101612160. Its totient is φ = 44943288.
The previous prime is 68880893. The next prime is 68880899. The reversal of 68880897 is 79808886.
It is not a de Polignac number, because 68880897 - 22 = 68880893 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68880893) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80997 + ... + 81842.
It is an arithmetic number, because the mean of its divisors is an integer number (8467680).
Almost surely, 268880897 is an apocalyptic number.
It is an amenable number.
68880897 is a deficient number, since it is larger than the sum of its proper divisors (32731263).
68880897 is a wasteful number, since it uses less digits than its factorization.
68880897 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 162892 (or 162889 counting only the distinct ones).
The product of its (nonzero) digits is 1548288, while the sum is 54.
The square root of 68880897 is about 8299.4516083896. The cubic root of 68880897 is about 409.9204624613.
The spelling of 68880897 in words is "sixty-eight million, eight hundred eighty thousand, eight hundred ninety-seven".
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