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487801860 = 2235721312763
BaseRepresentation
bin11101000100110…
…100010000000100
31020222212220100120
4131010310100010
51444334124420
6120223141540
715042150600
oct3504642004
91228786316
10487801860
11230395837
121174448b0
137a0a3b70
1448adc500
152cc58d40
hex1d134404

487801860 has 144 divisors (see below), whose sum is σ = 1711192896. Its totient is φ = 102912768.

The previous prime is 487801807. The next prime is 487801883. The reversal of 487801860 is 68108784.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31839 + ... + 44601.

It is an arithmetic number, because the mean of its divisors is an integer number (11883284).

Almost surely, 2487801860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487801860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855596448).

487801860 is an abundant number, since it is smaller than the sum of its proper divisors (1223391036).

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

487801860 is a wasteful number, since it uses less digits than its factorization.

487801860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12802 (or 12793 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 487801860 is about 22086.2368908784. The cubic root of 487801860 is about 787.1928678856.

The spelling of 487801860 in words is "four hundred eighty-seven million, eight hundred one thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 49 52 60 65 70 78 84 91 98 105 130 140 147 156 182 195 196 210 245 260 273 294 364 390 420 455 490 546 588 637 735 780 910 980 1092 1274 1365 1470 1820 1911 2548 2730 2940 3185 3822 5460 6370 7644 9555 12740 12763 19110 25526 38220 38289 51052 63815 76578 89341 127630 153156 165919 178682 191445 255260 268023 331838 357364 382890 446705 497757 536046 625387 663676 765780 829595 893410 995514 1072092 1161433 1250774 1340115 1659190 1786820 1876161 1991028 2322866 2488785 2501548 2680230 3126935 3318380 3484299 3752322 4645732 4977570 5360460 5807165 6253870 6968598 7504644 8130031 9380805 9955140 11614330 12507740 13937196 16260062 17421495 18761610 23228660 24390093 32520124 34842990 37523220 40650155 48780186 69685980 81300310 97560372 121950465 162600620 243900930 487801860