Base | Representation |
---|---|
bin | 101111111110… |
… | …1011001010000 |
3 | 1202100000101022 |
4 | 1133331121100 |
5 | 22414431102 |
6 | 2255055012 |
7 | 423546431 |
oct | 137753120 |
9 | 52300338 |
10 | 25155152 |
11 | 13221490 |
12 | 8511468 |
13 | 5299a09 |
14 | 34ab488 |
15 | 231d5a2 |
hex | 17fd650 |
25155152 has 40 divisors (see below), whose sum is σ = 54317952. Its totient is φ = 11187200.
The previous prime is 25155149. The next prime is 25155157.
25155152 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25155157) 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, 6752 + ... + 9792.
Almost surely, 225155152 is an apocalyptic number.
25155152 is a gapful number since it is divisible by the number (22) 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 25155152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27158976).
25155152 is an abundant number, since it is smaller than the sum of its proper divisors (29162800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25155152 is a wasteful number, since it uses less digits than its factorization.
25155152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3107 (or 3101 counting only the distinct ones).
The product of its digits is 2500, while the sum is 26.
The square root of 25155152 is about 5015.4912022652. The cubic root of 25155152 is about 293.0054163870.
It can be divided in two parts, 2515 and 5152, that added together give a palindrome (7667).
The spelling of 25155152 in words is "twenty-five million, one hundred fifty-five thousand, one hundred fifty-two".
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