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489143120 = 24541197757
BaseRepresentation
bin11101001001111…
…011101101010000
31021002102001012212
4131021323231100
52000210034440
6120312011252
715056435144
oct3511735520
91232361185
10489143120
11231121514
12117990b28
137a4534cb
1448d6b224
152ce21465
hex1d27bb50

489143120 has 80 divisors (see below), whose sum is σ = 1172456208. Its totient is φ = 189665280.

The previous prime is 489143119. The next prime is 489143131. The reversal of 489143120 is 21341984.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 379456 + 488763664 = 616^2 + 22108^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645782 + ... + 646538.

Almost surely, 2489143120 is an apocalyptic number.

489143120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489143120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586228104).

489143120 is an abundant number, since it is smaller than the sum of its proper divisors (683313088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489143120 is a wasteful number, since it uses less digits than its factorization.

489143120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 489143120 is about 22116.5802058094. The cubic root of 489143120 is about 787.9136961319.

The spelling of 489143120 in words is "four hundred eighty-nine million, one hundred forty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 41 80 82 164 197 205 328 394 410 656 757 788 820 985 1514 1576 1640 1970 3028 3152 3280 3785 3940 6056 7570 7880 8077 12112 15140 15760 16154 30280 31037 32308 40385 60560 62074 64616 80770 124148 129232 149129 155185 161540 248296 298258 310370 323080 496592 596516 620740 646160 745645 1193032 1241480 1491290 2386064 2482960 2982580 5965160 6114289 11930320 12228578 24457156 30571445 48914312 61142890 97828624 122285780 244571560 489143120