Base | Representation |
---|---|
bin | 1100110110001… |
… | …0000000111101 |
3 | 10202101022212210 |
4 | 3031202000331 |
5 | 102243110340 |
6 | 5202451033 |
7 | 1222651116 |
oct | 315420075 |
9 | 122338783 |
10 | 53878845 |
11 | 2845aa79 |
12 | 16063a79 |
13 | b215a97 |
14 | 722720d |
15 | 4ae4180 |
hex | 336203d |
53878845 has 32 divisors (see below), whose sum is σ = 89171712. Its totient is φ = 27758592.
The previous prime is 53878843. The next prime is 53878849. The reversal of 53878845 is 54887835.
It is not a de Polignac number, because 53878845 - 21 = 53878843 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 53878794 and 53878803.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53878841) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106864 + ... + 107366.
It is an arithmetic number, because the mean of its divisors is an integer number (2786616).
Almost surely, 253878845 is an apocalyptic number.
It is an amenable number.
53878845 is a deficient number, since it is larger than the sum of its proper divisors (35292867).
53878845 is a wasteful number, since it uses less digits than its factorization.
53878845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 741.
The product of its digits is 1075200, while the sum is 48.
The square root of 53878845 is about 7340.2210457179. The cubic root of 53878845 is about 377.6934260119.
The spelling of 53878845 in words is "fifty-three million, eight hundred seventy-eight thousand, eight hundred forty-five".
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