Base | Representation |
---|---|
bin | 1011101010111… |
… | …11111011010101 |
3 | 20211020100221021 |
4 | 11311133323111 |
5 | 200031113420 |
6 | 13414321141 |
7 | 2266140211 |
oct | 565377325 |
9 | 224210837 |
10 | 97910485 |
11 | 502a4662 |
12 | 289591b1 |
13 | 173916ca |
14 | d009941 |
15 | 88e07aa |
hex | 5d5fed5 |
97910485 has 4 divisors (see below), whose sum is σ = 117492588. Its totient is φ = 78328384.
The previous prime is 97910479. The next prime is 97910489. The reversal of 97910485 is 58401979.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58401979 = 857 ⋅68147.
It can be written as a sum of positive squares in 2 ways, for example, as 40666129 + 57244356 = 6377^2 + 7566^2 .
It is a cyclic number.
It is not a de Polignac number, because 97910485 - 25 = 97910453 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (97910489) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9791044 + ... + 9791053.
It is an arithmetic number, because the mean of its divisors is an integer number (29373147).
Almost surely, 297910485 is an apocalyptic number.
It is an amenable number.
97910485 is a deficient number, since it is larger than the sum of its proper divisors (19582103).
97910485 is a wasteful number, since it uses less digits than its factorization.
97910485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19582102.
The product of its (nonzero) digits is 90720, while the sum is 43.
The square root of 97910485 is about 9894.9727134540. The cubic root of 97910485 is about 460.9032112040.
The spelling of 97910485 in words is "ninety-seven million, nine hundred ten thousand, four hundred eighty-five".
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