Base | Representation |
---|---|
bin | 11101000111111… |
… | …110101011001100 |
3 | 1021001110000201000 |
4 | 131013332223030 |
5 | 2000042142423 |
6 | 120253020300 |
7 | 15052203066 |
oct | 3507765314 |
9 | 1231400630 |
10 | 488630988 |
11 | 23090176a |
12 | 117784690 |
13 | 7a304381 |
14 | 48c76736 |
15 | 2cd6e843 |
hex | 1d1feacc |
488630988 has 48 divisors (see below), whose sum is σ = 1293788160. Its totient is φ = 159409872.
The previous prime is 488630981. The next prime is 488630993. The reversal of 488630988 is 889036884.
It is a super-2 number, since 2×4886309882 = 477520484867712288, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (488630981) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43056 + ... + 53207.
It is an arithmetic number, because the mean of its divisors is an integer number (26953920).
Almost surely, 2488630988 is an apocalyptic number.
It is an amenable number.
488630988 is an abundant number, since it is smaller than the sum of its proper divisors (805157172).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
488630988 is a wasteful number, since it uses less digits than its factorization.
488630988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 96323 (or 96315 counting only the distinct ones).
The product of its (nonzero) digits is 2654208, while the sum is 54.
The square root of 488630988 is about 22104.9991630853. Note that the first 3 decimals coincide. The cubic root of 488630988 is about 787.6386186823.
The spelling of 488630988 in words is "four hundred eighty-eight million, six hundred thirty thousand, nine hundred eighty-eight".
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