Base | Representation |
---|---|
bin | 1011111001111… |
… | …1111011001000 |
3 | 10110222010020000 |
4 | 2332133323020 |
5 | 100241004440 |
6 | 4542203000 |
7 | 1144316121 |
oct | 276377310 |
9 | 113863200 |
10 | 49938120 |
11 | 26209281 |
12 | 14883460 |
13 | a4661ab |
14 | 68bd048 |
15 | 45b6730 |
hex | 2f9fec8 |
49938120 has 80 divisors (see below), whose sum is σ = 167858460. Its totient is φ = 13315968.
The previous prime is 49938107. The next prime is 49938127. The reversal of 49938120 is 2183994.
It can be written as a sum of positive squares in 2 ways, for example, as 49028004 + 910116 = 7002^2 + 954^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (49938127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4467 + ... + 10946.
Almost surely, 249938120 is an apocalyptic number.
49938120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
49938120 is an abundant number, since it is smaller than the sum of its proper divisors (117920340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49938120 is a wasteful number, since it uses less digits than its factorization.
49938120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15436 (or 15423 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 49938120 is about 7066.6908804617. The cubic root of 49938120 is about 368.2511085452.
The spelling of 49938120 in words is "forty-nine million, nine hundred thirty-eight thousand, one hundred twenty".
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