Base | Representation |
---|---|
bin | 1011101011010… |
… | …1101111011011 |
3 | 10102011101102121 |
4 | 2322311233123 |
5 | 100014311112 |
6 | 4505442111 |
7 | 1133212435 |
oct | 272655733 |
9 | 112141377 |
10 | 48978907 |
11 | 2571363a |
12 | 144a0337 |
13 | a1bb703 |
14 | 670d655 |
15 | 4477407 |
hex | 2eb5bdb |
48978907 has 4 divisors (see below), whose sum is σ = 49033816. Its totient is φ = 48924000.
The previous prime is 48978901. The next prime is 48978911. The reversal of 48978907 is 70987984.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 48978907 - 23 = 48978899 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (48978901) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26094 + ... + 27907.
It is an arithmetic number, because the mean of its divisors is an integer number (12258454).
Almost surely, 248978907 is an apocalyptic number.
48978907 is a deficient number, since it is larger than the sum of its proper divisors (54909).
48978907 is an equidigital number, since it uses as much as digits as its factorization.
48978907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54908.
The product of its (nonzero) digits is 1016064, while the sum is 52.
The square root of 48978907 is about 6998.4931949670. The cubic root of 48978907 is about 365.8780561633.
The spelling of 48978907 in words is "forty-eight million, nine hundred seventy-eight thousand, nine hundred seven".
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