Base | Representation |
---|---|
bin | 1100010111101… |
… | …0100011000100 |
3 | 10121121212222020 |
4 | 3011322203010 |
5 | 101240212210 |
6 | 5052003140 |
7 | 1166664000 |
oct | 305724304 |
9 | 117555866 |
10 | 51882180 |
11 | 27316939 |
12 | 154604b0 |
13 | a99701c |
14 | 6c67700 |
15 | 484c770 |
hex | 317a8c4 |
51882180 has 96 divisors (see below), whose sum is σ = 169478400. Its totient is φ = 11854080.
The previous prime is 51882169. The next prime is 51882191. The reversal of 51882180 is 8128815.
It is an interprime number because it is at equal distance from previous prime (51882169) and next prime (51882191).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19320 + ... + 21840.
It is an arithmetic number, because the mean of its divisors is an integer number (1765400).
Almost surely, 251882180 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 51882180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84739200).
51882180 is an abundant number, since it is smaller than the sum of its proper divisors (117596220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51882180 is a wasteful number, since it uses less digits than its factorization.
51882180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2554 (or 2538 counting only the distinct ones).
The product of its (nonzero) digits is 5120, while the sum is 33.
The square root of 51882180 is about 7202.9285710744. The cubic root of 51882180 is about 372.9690022086.
The spelling of 51882180 in words is "fifty-one million, eight hundred eighty-two thousand, one hundred eighty".
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