Base | Representation |
---|---|
bin | 101001111011110011… |
… | …0100100111010000000 |
3 | 22121102222102021120000 |
4 | 1103313212210322000 |
5 | 2433412134242122 |
6 | 105211525320000 |
7 | 6335415350544 |
oct | 1236746447200 |
9 | 277388367500 |
10 | 90053430912 |
11 | 352118a5575 |
12 | 15552866000 |
13 | 8651c0c1c3 |
14 | 4504049a24 |
15 | 2520dd30ac |
hex | 14f79a4e80 |
90053430912 has 80 divisors (see below), whose sum is σ = 267997582050. Its totient is φ = 30017806848.
The previous prime is 90053430911. The next prime is 90053430923. The reversal of 90053430912 is 21903435009.
It is a happy number.
90053430912 is a `hidden beast` number, since 9 + 0 + 0 + 534 + 30 + 91 + 2 = 666.
It can be written as a sum of positive squares in only one way, i.e., 45943350336 + 44110080576 = 214344^2 + 210024^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (90053430911) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4332487 + ... + 4353222.
Almost surely, 290053430912 is an apocalyptic number.
It is an amenable number.
90053430912 is an abundant number, since it is smaller than the sum of its proper divisors (177944151138).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90053430912 is an equidigital number, since it uses as much as digits as its factorization.
90053430912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8685735 (or 8685714 counting only the distinct ones).
The product of its (nonzero) digits is 29160, while the sum is 36.
The spelling of 90053430912 in words is "ninety billion, fifty-three million, four hundred thirty thousand, nine hundred twelve".
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