Base | Representation |
---|---|
bin | 1010011101101… |
… | …11111001011110 |
3 | 20010011221110022 |
4 | 11032313321132 |
5 | 134433110204 |
6 | 12413312142 |
7 | 2114106050 |
oct | 516677136 |
9 | 203157408 |
10 | 87785054 |
11 | 45609235 |
12 | 25495652 |
13 | 15257a26 |
14 | b9318d0 |
15 | 7a905be |
hex | 53b7e5e |
87785054 has 16 divisors (see below), whose sum is σ = 158409600. Its totient is φ = 35641944.
The previous prime is 87785051. The next prime is 87785063. The reversal of 87785054 is 45058778.
It is a junction number, because it is equal to n+sod(n) for n = 87784996 and 87785014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87785051) 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, 164744 + ... + 165275.
It is an arithmetic number, because the mean of its divisors is an integer number (9900600).
Almost surely, 287785054 is an apocalyptic number.
87785054 is a deficient number, since it is larger than the sum of its proper divisors (70624546).
87785054 is a wasteful number, since it uses less digits than its factorization.
87785054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 330047.
The product of its (nonzero) digits is 313600, while the sum is 44.
The square root of 87785054 is about 9369.3678548769. The cubic root of 87785054 is about 444.4335746555.
The spelling of 87785054 in words is "eighty-seven million, seven hundred eighty-five thousand, fifty-four".
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