Base | Representation |
---|---|
bin | 1001011010000100… |
… | …1101111010011100 |
3 | 20111222210000211110 |
4 | 2112201031322130 |
5 | 20132433241030 |
6 | 1054325422020 |
7 | 116402416632 |
oct | 22641157234 |
9 | 6458700743 |
10 | 2525290140 |
11 | 108650794a |
12 | 5a586a910 |
13 | 313245729 |
14 | 19d555352 |
15 | eba741b0 |
hex | 9684de9c |
2525290140 has 48 divisors (see below), whose sum is σ = 7139478528. Its totient is φ = 666871104.
The previous prime is 2525290127. The next prime is 2525290147. The reversal of 2525290140 is 410925252.
2525290140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 2525290098 and 2525290107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2525290147) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198132 + ... + 210491.
It is an arithmetic number, because the mean of its divisors is an integer number (148739136).
Almost surely, 22525290140 is an apocalyptic number.
2525290140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2525290140 is an abundant number, since it is smaller than the sum of its proper divisors (4614188388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2525290140 is a wasteful number, since it uses less digits than its factorization.
2525290140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 408738 (or 408736 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 30.
The square root of 2525290140 is about 50252.2650235788. The cubic root of 2525290140 is about 1361.7699957260.
The spelling of 2525290140 in words is "two billion, five hundred twenty-five million, two hundred ninety thousand, one hundred forty".
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