Base | Representation |
---|---|
bin | 101111110100… |
… | …0010011101100 |
3 | 1202011121220100 |
4 | 1133220103230 |
5 | 22404200110 |
6 | 2253151100 |
7 | 423036552 |
oct | 137502354 |
9 | 52147810 |
10 | 25068780 |
11 | 13172600 |
12 | 848b490 |
13 | 52695c9 |
14 | 3487bd2 |
15 | 2302bc0 |
hex | 17e84ec |
25068780 has 108 divisors (see below), whose sum is σ = 83655936. Its totient is φ = 6072000.
The previous prime is 25068779. The next prime is 25068811. The reversal of 25068780 is 8786052.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21205 + ... + 22355.
It is an arithmetic number, because the mean of its divisors is an integer number (774592).
Almost surely, 225068780 is an apocalyptic number.
25068780 is a gapful number since it is divisible by the number (20) 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 25068780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41827968).
25068780 is an abundant number, since it is smaller than the sum of its proper divisors (58587156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25068780 is a wasteful number, since it uses less digits than its factorization.
25068780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1188 (or 1172 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 25068780 is about 5006.8732758080. The cubic root of 25068780 is about 292.6696802033.
The spelling of 25068780 in words is "twenty-five million, sixty-eight thousand, seven hundred eighty".
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