Base | Representation |
---|---|
bin | 110001101000001111… |
… | …000100110111000111 |
3 | 12002112202111200210022 |
4 | 301220033010313013 |
5 | 1333113311440322 |
6 | 40251431045355 |
7 | 3564351561602 |
oct | 615017046707 |
9 | 162482450708 |
10 | 53288390087 |
11 | 206659a8209 |
12 | a3b221085b |
13 | 504311878a |
14 | 2817367339 |
15 | 15bd402942 |
hex | c683c4dc7 |
53288390087 has 4 divisors (see below), whose sum is σ = 53677356576. Its totient is φ = 52899423600.
The previous prime is 53288390069. The next prime is 53288390101. The reversal of 53288390087 is 78009388235.
53288390087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78009388235 = 5 ⋅15601877647.
It is a cyclic number.
It is not a de Polignac number, because 53288390087 - 220 = 53287341511 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53288390017) 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, 194483039 + ... + 194483312.
It is an arithmetic number, because the mean of its divisors is an integer number (13419339144).
Almost surely, 253288390087 is an apocalyptic number.
53288390087 is a deficient number, since it is larger than the sum of its proper divisors (388966489).
53288390087 is a wasteful number, since it uses less digits than its factorization.
53288390087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 388966488.
The product of its (nonzero) digits is 2903040, while the sum is 53.
The spelling of 53288390087 in words is "fifty-three billion, two hundred eighty-eight million, three hundred ninety thousand, eighty-seven".
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