Base | Representation |
---|---|
bin | 1010101111110… |
… | …00110111010100 |
3 | 20021122000020020 |
4 | 11113320313110 |
5 | 141034221213 |
6 | 12540105140 |
7 | 2143151025 |
oct | 527706724 |
9 | 207560206 |
10 | 90148308 |
11 | 46982838 |
12 | 262351b0 |
13 | 158a45c3 |
14 | bd88c4c |
15 | 7daa923 |
hex | 55f8dd4 |
90148308 has 24 divisors (see below), whose sum is σ = 212517312. Its totient is φ = 29739264.
The previous prime is 90148307. The next prime is 90148313. The reversal of 90148308 is 80384109.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90148307) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37560 + ... + 39887.
It is an arithmetic number, because the mean of its divisors is an integer number (8854888).
Almost surely, 290148308 is an apocalyptic number.
It is an amenable number.
90148308 is an abundant number, since it is smaller than the sum of its proper divisors (122369004).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90148308 is a wasteful number, since it uses less digits than its factorization.
90148308 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77551 (or 77549 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 90148308 is about 9494.6462809312. The cubic root of 90148308 is about 448.3864981506.
The spelling of 90148308 in words is "ninety million, one hundred forty-eight thousand, three hundred eight".
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