Base | Representation |
---|---|
bin | 1011111001000… |
… | …1111011110100 |
3 | 10110212012121210 |
4 | 2332101323310 |
5 | 100232141240 |
6 | 4541041420 |
7 | 1143660063 |
oct | 276217364 |
9 | 113765553 |
10 | 49880820 |
11 | 2617a220 |
12 | 14856270 |
13 | a4460a2 |
14 | 68a61da |
15 | 45a4780 |
hex | 2f91ef4 |
49880820 has 48 divisors (see below), whose sum is σ = 152365248. Its totient is φ = 12092160.
The previous prime is 49880717. The next prime is 49880849. The reversal of 49880820 is 2808894.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37129 + ... + 38448.
It is an arithmetic number, because the mean of its divisors is an integer number (3174276).
Almost surely, 249880820 is an apocalyptic number.
It is an amenable number.
49880820 is an abundant number, since it is smaller than the sum of its proper divisors (102484428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49880820 is a wasteful number, since it uses less digits than its factorization.
49880820 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75600 (or 75598 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 39.
The square root of 49880820 is about 7062.6354854261. The cubic root of 49880820 is about 368.1102084062.
It can be divided in two parts, 498 and 80820, that added together give a palindrome (81318).
The spelling of 49880820 in words is "forty-nine million, eight hundred eighty thousand, eight hundred twenty".
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