Base | Representation |
---|---|
bin | 101111110110… |
… | …1100110110000 |
3 | 1202012201200001 |
4 | 1133231212300 |
5 | 22410343410 |
6 | 2253435344 |
7 | 423160042 |
oct | 137554660 |
9 | 52181601 |
10 | 25090480 |
11 | 13187938 |
12 | 849bb54 |
13 | 527644c |
14 | 3491a92 |
15 | 230933a |
hex | 17ed9b0 |
25090480 has 40 divisors (see below), whose sum is σ = 59585472. Its totient is φ = 9821184.
The previous prime is 25090451. The next prime is 25090489. The reversal of 25090480 is 8409052.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (25090489) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424 + ... + 7096.
Almost surely, 225090480 is an apocalyptic number.
25090480 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 25090480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29792736).
25090480 is an abundant number, since it is smaller than the sum of its proper divisors (34494992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25090480 is a wasteful number, since it uses less digits than its factorization.
25090480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6733 (or 6727 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 28.
The square root of 25090480 is about 5009.0398281507. The cubic root of 25090480 is about 292.7541026130.
The spelling of 25090480 in words is "twenty-five million, ninety thousand, four hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •