Base | Representation |
---|---|
bin | 11101001001010… |
… | …110001110110100 |
3 | 1021002010020122200 |
4 | 131021112032310 |
5 | 2000140131440 |
6 | 120304424500 |
7 | 15055225500 |
oct | 3511261664 |
9 | 1232106580 |
10 | 488989620 |
11 | 231027159 |
12 | 117918130 |
13 | 7a3cb692 |
14 | 48d2b300 |
15 | 2cde0c30 |
hex | 1d2563b4 |
488989620 has 108 divisors (see below), whose sum is σ = 1725465924. Its totient is φ = 111767040.
The previous prime is 488989609. The next prime is 488989621. The reversal of 488989620 is 26989884.
488989620 is a `hidden beast` number, since 4 + 8 + 8 + 9 + 8 + 9 + 620 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 196784784 + 292204836 = 14028^2 + 17094^2 .
It is a super-2 number, since 2×4889896202 = 478221696935488800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (488989621) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18901 + ... + 36540.
Almost surely, 2488989620 is an apocalyptic number.
It is an amenable number.
488989620 is an abundant number, since it is smaller than the sum of its proper divisors (1236476304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
488989620 is a wasteful number, since it uses less digits than its factorization.
488989620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55470 (or 55458 counting only the distinct ones).
The product of its (nonzero) digits is 1990656, while the sum is 54.
The square root of 488989620 is about 22113.1096863376. The cubic root of 488989620 is about 787.8312680374.
The spelling of 488989620 in words is "four hundred eighty-eight million, nine hundred eighty-nine thousand, six hundred twenty".
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