Base | Representation |
---|---|
bin | 1100011111001… |
… | …1110001100101 |
3 | 10122120010002210 |
4 | 3013303301211 |
5 | 101402104400 |
6 | 5110354033 |
7 | 1204132440 |
oct | 307636145 |
9 | 118503083 |
10 | 52378725 |
11 | 27625a03 |
12 | 1565b919 |
13 | ab0c039 |
14 | 6d56657 |
15 | 48e9950 |
hex | 31f3c65 |
52378725 has 96 divisors (see below), whose sum is σ = 107136000. Its totient is φ = 22049280.
The previous prime is 52378723. The next prime is 52378769. The reversal of 52378725 is 52787325.
It is not a de Polignac number, because 52378725 - 21 = 52378723 is a prime.
It is a super-3 number, since 3×523787253 (a number of 24 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (52378721) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 588481 + ... + 588569.
It is an arithmetic number, because the mean of its divisors is an integer number (1116000).
Almost surely, 252378725 is an apocalyptic number.
It is an amenable number.
52378725 is an abundant number, since it is smaller than the sum of its proper divisors (54757275).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
52378725 is a wasteful number, since it uses less digits than its factorization.
52378725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 187 (or 182 counting only the distinct ones).
The product of its digits is 117600, while the sum is 39.
The square root of 52378725 is about 7237.3147644689. The cubic root of 52378725 is about 374.1550754810.
The spelling of 52378725 in words is "fifty-two million, three hundred seventy-eight thousand, seven hundred twenty-five".
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