Base | Representation |
---|---|
bin | 1011101010011… |
… | …1100101010001 |
3 | 10102001102212200 |
4 | 2322213211101 |
5 | 100010432123 |
6 | 4504313413 |
7 | 1132551366 |
oct | 272474521 |
9 | 112042780 |
10 | 48920913 |
11 | 25684008 |
12 | 14472869 |
13 | a19b1b2 |
14 | 66d646d |
15 | 4465143 |
hex | 2ea7951 |
48920913 has 24 divisors (see below), whose sum is σ = 72825480. Its totient is φ = 31626240.
The previous prime is 48920903. The next prime is 48920923. The reversal of 48920913 is 31902984.
It is an interprime number because it is at equal distance from previous prime (48920903) and next prime (48920923).
It can be written as a sum of positive squares in 4 ways, for example, as 2585664 + 46335249 = 1608^2 + 6807^2 .
It is not a de Polignac number, because 48920913 - 224 = 32143697 is a prime.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (48920903) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85693 + ... + 86261.
It is an arithmetic number, because the mean of its divisors is an integer number (3034395).
Almost surely, 248920913 is an apocalyptic number.
It is an amenable number.
48920913 is a deficient number, since it is larger than the sum of its proper divisors (23904567).
48920913 is a wasteful number, since it uses less digits than its factorization.
48920913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 849 (or 846 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 48920913 is about 6994.3486473009. The cubic root of 48920913 is about 365.7335918516.
The spelling of 48920913 in words is "forty-eight million, nine hundred twenty thousand, nine hundred thirteen".
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