Base | Representation |
---|---|
bin | 11111010100011… |
… | …110101001111100 |
3 | 1100121202020112202 |
4 | 133110132221330 |
5 | 2034004242030 |
6 | 124050251032 |
7 | 16010232410 |
oct | 3724365174 |
9 | 1317666482 |
10 | 525462140 |
11 | 24a678535 |
12 | 127b86a78 |
13 | 84b2b758 |
14 | 4db02d40 |
15 | 311e7745 |
hex | 1f51ea7c |
525462140 has 96 divisors (see below), whose sum is σ = 1341204480. Its totient is φ = 169019136.
The previous prime is 525462131. The next prime is 525462149. The reversal of 525462140 is 41264525.
It is an interprime number because it is at equal distance from previous prime (525462131) and next prime (525462149).
It is a super-2 number, since 2×5254621402 = 552220921146759200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (525462149) 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, 169121 + ... + 172199.
It is an arithmetic number, because the mean of its divisors is an integer number (13970880).
Almost surely, 2525462140 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 525462140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670602240).
525462140 is an abundant number, since it is smaller than the sum of its proper divisors (815742340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
525462140 is a wasteful number, since it uses less digits than its factorization.
525462140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3171 (or 3169 counting only the distinct ones).
The product of its (nonzero) digits is 9600, while the sum is 29.
The square root of 525462140 is about 22922.9609780238. The cubic root of 525462140 is about 806.9509615002.
The spelling of 525462140 in words is "five hundred twenty-five million, four hundred sixty-two thousand, one hundred forty".
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