Base | Representation |
---|---|
bin | 10111011011010010… |
… | …011001110000000000 |
3 | 2101221000110000221020 |
4 | 113123102121300000 |
5 | 403003342331343 |
6 | 15315554425440 |
7 | 1550223242301 |
oct | 273322316000 |
9 | 71830400836 |
10 | 25153870848 |
11 | a738782517 |
12 | 4a5bb92280 |
13 | 24ab38c262 |
14 | 130899c7a8 |
15 | 9c3468b83 |
hex | 5db499c00 |
25153870848 has 88 divisors (see below), whose sum is σ = 67100987520. Its totient is φ = 8377528320.
The previous prime is 25153870843. The next prime is 25153870873. The reversal of 25153870848 is 84807835152.
It is a self number, because there is not a number n which added to its sum of digits gives 25153870848.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25153870843) 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, 4639083 + ... + 4644501.
Almost surely, 225153870848 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25153870848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33550493760).
25153870848 is an abundant number, since it is smaller than the sum of its proper divisors (41947116672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25153870848 is a wasteful number, since it uses less digits than its factorization.
25153870848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6953 (or 6935 counting only the distinct ones).
The product of its (nonzero) digits is 2150400, while the sum is 51.
The spelling of 25153870848 in words is "twenty-five billion, one hundred fifty-three million, eight hundred seventy thousand, eight hundred forty-eight".
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