Base | Representation |
---|---|
bin | 11101110011000… |
… | …01111010010010 |
3 | 122102100101120200 |
4 | 32321201322102 |
5 | 1002442242010 |
6 | 40445320030 |
7 | 6123433365 |
oct | 1671417222 |
9 | 572311520 |
10 | 249962130 |
11 | 119108280 |
12 | 6b866016 |
13 | 3ca2b3b2 |
14 | 252aa0dc |
15 | 16e27cc0 |
hex | ee61e92 |
249962130 has 96 divisors (see below), whose sum is σ = 713793600. Its totient is φ = 60186240.
The previous prime is 249962123. The next prime is 249962131. The reversal of 249962130 is 31269942.
249962130 is a `hidden beast` number, since 24 + 9 + 9 + 621 + 3 + 0 = 666.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (249962131) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160596 + ... + 162144.
It is an arithmetic number, because the mean of its divisors is an integer number (7435350).
Almost surely, 2249962130 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 249962130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356896800).
249962130 is an abundant number, since it is smaller than the sum of its proper divisors (463831470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
249962130 is a wasteful number, since it uses less digits than its factorization.
249962130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1736 (or 1733 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The square root of 249962130 is about 15810.1907009372. The cubic root of 249962130 is about 629.9287145344.
The spelling of 249962130 in words is "two hundred forty-nine million, nine hundred sixty-two thousand, one hundred thirty".
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