Base | Representation |
---|---|
bin | 10111011001111011… |
… | …101100011110100000 |
3 | 2101212102200020110220 |
4 | 113121323230132200 |
5 | 402432033003044 |
6 | 15313423323040 |
7 | 1546526113503 |
oct | 273173543640 |
9 | 71772606426 |
10 | 25131141024 |
11 | a726968240 |
12 | 4a54450480 |
13 | 24a6761462 |
14 | 130596313a |
15 | 9c1479019 |
hex | 5d9eec7a0 |
25131141024 has 96 divisors (see below), whose sum is σ = 72449899200. Its totient is φ = 7564339200.
The previous prime is 25131140981. The next prime is 25131141121. The reversal of 25131141024 is 42014113152.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a junction number, because it is equal to n+sod(n) for n = 25131140985 and 25131141003.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77484 + ... + 237204.
It is an arithmetic number, because the mean of its divisors is an integer number (754686450).
Almost surely, 225131141024 is an apocalyptic number.
25131141024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25131141024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36224949600).
25131141024 is an abundant number, since it is smaller than the sum of its proper divisors (47318758176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25131141024 is a wasteful number, since it uses less digits than its factorization.
25131141024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 159894 (or 159886 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
Adding to 25131141024 its reverse (42014113152), we get a palindrome (67145254176).
The spelling of 25131141024 in words is "twenty-five billion, one hundred thirty-one million, one hundred forty-one thousand, twenty-four".
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