Base | Representation |
---|---|
bin | 1010001010010… |
… | …00011101000110 |
3 | 12221101012112122 |
4 | 11011020131012 |
5 | 133304401210 |
6 | 12242445542 |
7 | 2053312064 |
oct | 505103506 |
9 | 187335478 |
10 | 85231430 |
11 | 441246a9 |
12 | 246638b2 |
13 | 148725cb |
14 | b469034 |
15 | 7738b55 |
hex | 5148746 |
85231430 has 8 divisors (see below), whose sum is σ = 153416592. Its totient is φ = 34092568.
The previous prime is 85231429. The next prime is 85231439. The reversal of 85231430 is 3413258.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 85231430.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85231439) 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 3 ways as a sum of consecutive naturals, for example, 4261562 + ... + 4261581.
It is an arithmetic number, because the mean of its divisors is an integer number (19177074).
Almost surely, 285231430 is an apocalyptic number.
85231430 is a deficient number, since it is larger than the sum of its proper divisors (68185162).
85231430 is a wasteful number, since it uses less digits than its factorization.
85231430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8523150.
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 85231430 is about 9232.0869796596. The cubic root of 85231430 is about 440.0816480713.
Adding to 85231430 its reverse (3413258), we get a palindrome (88644688).
The spelling of 85231430 in words is "eighty-five million, two hundred thirty-one thousand, four hundred thirty".
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