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488630988 = 22334796263
BaseRepresentation
bin11101000111111…
…110101011001100
31021001110000201000
4131013332223030
52000042142423
6120253020300
715052203066
oct3507765314
91231400630
10488630988
1123090176a
12117784690
137a304381
1448c76736
152cd6e843
hex1d1feacc

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".

Divisors: 1 2 3 4 6 9 12 18 27 36 47 54 94 108 141 188 282 423 564 846 1269 1692 2538 5076 96263 192526 288789 385052 577578 866367 1155156 1732734 2599101 3465468 4524361 5198202 9048722 10396404 13573083 18097444 27146166 40719249 54292332 81438498 122157747 162876996 244315494 488630988