| Base | Representation |
|---|---|
| bin | 1011111000001… |
| … | …1011101010000 |
| 3 | 10110202012021111 |
| 4 | 2332003131100 |
| 5 | 100223242040 |
| 6 | 4535503104 |
| 7 | 1143322150 |
| oct | 276033520 |
| 9 | 113665244 |
| 10 | 49821520 |
| 11 | 26139711 |
| 12 | 14827a94 |
| 13 | a4250b8 |
| 14 | 688c760 |
| 15 | 4591dea |
| hex | 2f83750 |
49821520 has 80 divisors (see below), whose sum is σ = 135527040. Its totient is φ = 16676352.
The previous prime is 49821511. The next prime is 49821521. The reversal of 49821520 is 2512894.
49821520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×498215202 = 4964367710220800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49821521) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23046 + ... + 25114.
It is an arithmetic number, because the mean of its divisors is an integer number (1694088).
Almost surely, 249821520 is an apocalyptic number.
49821520 is a gapful number since it is divisible by the number (40) 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 49821520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67763520).
49821520 is an abundant number, since it is smaller than the sum of its proper divisors (85705520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49821520 is a wasteful number, since it uses less digits than its factorization.
49821520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2132 (or 2126 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 31.
The square root of 49821520 is about 7058.4360874063. The cubic root of 49821520 is about 367.9642766205.
The spelling of 49821520 in words is "forty-nine million, eight hundred twenty-one thousand, five hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •