Base | Representation |
---|---|
bin | 1010101111101… |
… | …00111000101011 |
3 | 20021121011212122 |
4 | 11113310320223 |
5 | 141033211021 |
6 | 12535501455 |
7 | 2143052354 |
oct | 527647053 |
9 | 207534778 |
10 | 90132011 |
11 | 46971572 |
12 | 2622788b |
13 | 1589a068 |
14 | bd82d2b |
15 | 7da5bab |
hex | 55f4e2b |
90132011 has 4 divisors (see below), whose sum is σ = 95433912. Its totient is φ = 84830112.
The previous prime is 90132001. The next prime is 90132019. The reversal of 90132011 is 11023109.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 90132011 - 222 = 85937707 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 5301883 = 90132011 / (9 + 0 + 1 + 3 + 2 + 0 + 1 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (90132019) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2650925 + ... + 2650958.
It is an arithmetic number, because the mean of its divisors is an integer number (23858478).
Almost surely, 290132011 is an apocalyptic number.
90132011 is a deficient number, since it is larger than the sum of its proper divisors (5301901).
90132011 is a wasteful number, since it uses less digits than its factorization.
90132011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5301900.
The product of its (nonzero) digits is 54, while the sum is 17.
The square root of 90132011 is about 9493.7880216487. The cubic root of 90132011 is about 448.3594767703.
The spelling of 90132011 in words is "ninety million, one hundred thirty-two thousand, eleven".
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