Base | Representation |
---|---|
bin | 1011111010110… |
… | …0000110101111 |
3 | 10111001122122222 |
4 | 2332230012233 |
5 | 100244104030 |
6 | 4543225555 |
7 | 1144614440 |
oct | 276540657 |
9 | 114048588 |
10 | 49988015 |
11 | 26242810 |
12 | 148a82bb |
13 | a482b0c |
14 | 68d32c7 |
15 | 45c63e5 |
hex | 2fac1af |
49988015 has 32 divisors (see below), whose sum is σ = 75354624. Its totient is φ = 30925440.
The previous prime is 49988009. The next prime is 49988017. The reversal of 49988015 is 51088994.
It is not a de Polignac number, because 49988015 - 28 = 49987759 is a prime.
It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49988017) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60032 + ... + 60858.
It is an arithmetic number, because the mean of its divisors is an integer number (2354832).
Almost surely, 249988015 is an apocalyptic number.
49988015 is a deficient number, since it is larger than the sum of its proper divisors (25366609).
49988015 is a wasteful number, since it uses less digits than its factorization.
49988015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1007.
The product of its (nonzero) digits is 103680, while the sum is 44.
The square root of 49988015 is about 7070.2202935976. The cubic root of 49988015 is about 368.3737121002.
The spelling of 49988015 in words is "forty-nine million, nine hundred eighty-eight thousand, fifteen".
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