Base | Representation |
---|---|
bin | 1010110001010… |
… | …10010111101000 |
3 | 20022000022101022 |
4 | 11120222113220 |
5 | 141112213310 |
6 | 12544312012 |
7 | 2144654141 |
oct | 530522750 |
9 | 208008338 |
10 | 90351080 |
11 | 47001116 |
12 | 26312608 |
13 | 159459a1 |
14 | bddcac8 |
15 | 7deaa55 |
hex | 562a5e8 |
90351080 has 48 divisors (see below), whose sum is σ = 214586820. Its totient is φ = 34232832.
The previous prime is 90351059. The next prime is 90351083. The reversal of 90351080 is 8015309.
It can be written as a sum of positive squares in 2 ways, for example, as 83868964 + 6482116 = 9158^2 + 2546^2 .
It is not an unprimeable number, because it can be changed into a prime (90351083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11312 + ... + 17568.
Almost surely, 290351080 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 90351080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107293410).
90351080 is an abundant number, since it is smaller than the sum of its proper divisors (124235740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90351080 is a wasteful number, since it uses less digits than its factorization.
90351080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6306 (or 6283 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 26.
The square root of 90351080 is about 9505.3185112336. The cubic root of 90351080 is about 448.7224339903.
Adding to 90351080 its reverse (8015309), we get a palindrome (98366389).
The spelling of 90351080 in words is "ninety million, three hundred fifty-one thousand, eighty".
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