Base | Representation |
---|---|
bin | 1011101011011… |
… | …10001111111001 |
3 | 20211100100101212 |
4 | 11311232033321 |
5 | 200040003040 |
6 | 13415452505 |
7 | 2266503221 |
oct | 565561771 |
9 | 224310355 |
10 | 97969145 |
11 | 5033473a |
12 | 28987135 |
13 | 173b2311 |
14 | d023081 |
15 | 8902d65 |
hex | 5d6e3f9 |
97969145 has 12 divisors (see below), whose sum is σ = 121483620. Its totient is φ = 75843360.
The previous prime is 97969117. The next prime is 97969211. The reversal of 97969145 is 54196979.
It can be written as a sum of positive squares in 2 ways, for example, as 69538921 + 28430224 = 8339^2 + 5332^2 .
It is not a de Polignac number, because 97969145 - 220 = 96920569 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 97969093 and 97969102.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5390 + ... + 14999.
It is an arithmetic number, because the mean of its divisors is an integer number (10123635).
Almost surely, 297969145 is an apocalyptic number.
It is an amenable number.
97969145 is a deficient number, since it is larger than the sum of its proper divisors (23514475).
97969145 is a wasteful number, since it uses less digits than its factorization.
97969145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20456 (or 20425 counting only the distinct ones).
The product of its digits is 612360, while the sum is 50.
The square root of 97969145 is about 9897.9364010889. The cubic root of 97969145 is about 460.9952380685.
The spelling of 97969145 in words is "ninety-seven million, nine hundred sixty-nine thousand, one hundred forty-five".
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