Base | Representation |
---|---|
bin | 1000001111010… |
… | …00010101100001 |
3 | 11211001002211220 |
4 | 10013220111201 |
5 | 120142442324 |
6 | 10505125253 |
7 | 1466263140 |
oct | 407502541 |
9 | 154032756 |
10 | 69109089 |
11 | 36012755 |
12 | 1b189829 |
13 | 1141916a |
14 | 926d757 |
15 | 6101b79 |
hex | 41e8561 |
69109089 has 24 divisors (see below), whose sum is σ = 110104512. Its totient is φ = 37767840.
The previous prime is 69109069. The next prime is 69109091. The reversal of 69109089 is 98090196.
It is not a de Polignac number, because 69109089 - 213 = 69100897 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 69109089.
It is not an unprimeable number, because it can be changed into a prime (69109069) by changing a digit.
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, 7999 + ... + 14219.
It is an arithmetic number, because the mean of its divisors is an integer number (4587688).
Almost surely, 269109089 is an apocalyptic number.
69109089 is a gapful number since it is divisible by the number (69) formed by its first and last digit.
It is an amenable number.
69109089 is a deficient number, since it is larger than the sum of its proper divisors (40995423).
69109089 is a wasteful number, since it uses less digits than its factorization.
69109089 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6277 (or 6254 counting only the distinct ones).
The product of its (nonzero) digits is 34992, while the sum is 42.
The square root of 69109089 is about 8313.1876557672. The cubic root of 69109089 is about 410.3726316823.
The spelling of 69109089 in words is "sixty-nine million, one hundred nine thousand, eighty-nine".
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