Base | Representation |
---|---|
bin | 1010101111111… |
… | …11011110000001 |
3 | 20021200101100012 |
4 | 11113333132001 |
5 | 141041102421 |
6 | 12540434305 |
7 | 2143322633 |
oct | 527773601 |
9 | 207611305 |
10 | 90175361 |
11 | 469a10a1 |
12 | 26248995 |
13 | 158b3a03 |
14 | bd94a53 |
15 | 7db395b |
hex | 55ff781 |
90175361 has 8 divisors (see below), whose sum is σ = 95742504. Its totient is φ = 84637440.
The previous prime is 90175333. The next prime is 90175369. The reversal of 90175361 is 16357109.
It can be written as a sum of positive squares in 4 ways, for example, as 33640000 + 56535361 = 5800^2 + 7519^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-90175361 is a prime.
It is not an unprimeable number, because it can be changed into a prime (90175369) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 13451.
It is an arithmetic number, because the mean of its divisors is an integer number (11967813).
Almost surely, 290175361 is an apocalyptic number.
It is an amenable number.
90175361 is a deficient number, since it is larger than the sum of its proper divisors (5567143).
90175361 is a wasteful number, since it uses less digits than its factorization.
90175361 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14611.
The product of its (nonzero) digits is 5670, while the sum is 32.
The square root of 90175361 is about 9496.0708190283. The cubic root of 90175361 is about 448.4313464197.
The spelling of 90175361 in words is "ninety million, one hundred seventy-five thousand, three hundred sixty-one".
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