Base | Representation |
---|---|
bin | 1011111000111… |
… | …1010100000110 |
3 | 10110211122220020 |
4 | 2332033110012 |
5 | 100231320321 |
6 | 4540520010 |
7 | 1143613560 |
oct | 276172406 |
9 | 113748806 |
10 | 49870086 |
11 | 26172152 |
12 | 14850006 |
13 | a441236 |
14 | 68a2330 |
15 | 45a14c6 |
hex | 2f8f506 |
49870086 has 16 divisors (see below), whose sum is σ = 113988864. Its totient is φ = 14248584.
The previous prime is 49870081. The next prime is 49870097. The reversal of 49870086 is 68007894.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1187383 = 49870086 / (4 + 9 + 8 + 7 + 0 + 0 + 8 + 6).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49870081) 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, 593650 + ... + 593733.
It is an arithmetic number, because the mean of its divisors is an integer number (7124304).
Almost surely, 249870086 is an apocalyptic number.
49870086 is an abundant number, since it is smaller than the sum of its proper divisors (64118778).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49870086 is a wasteful number, since it uses less digits than its factorization.
49870086 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1187395.
The product of its (nonzero) digits is 96768, while the sum is 42.
The square root of 49870086 is about 7061.8755299141. The cubic root of 49870086 is about 368.0838016067.
The spelling of 49870086 in words is "forty-nine million, eight hundred seventy thousand, eighty-six".
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