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8659980252 = 223271119316187
BaseRepresentation
bin10000001000010110…
…01100111111011100
3211100112021120121100
420010023030333130
5120213423332002
63551153233100
7424413421560
oct100413147734
924315246540
108659980252
113744373380
121818262790
13a801ac991
145c21c56a0
1535a41511c
hex2042ccfdc

8659980252 has 144 divisors (see below), whose sum is σ = 27435163392. Its totient is φ = 2237552640.

The previous prime is 8659980221. The next prime is 8659980269. The reversal of 8659980252 is 2520899568.

It is a congruent number.

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, 526903 + ... + 543089.

It is an arithmetic number, because the mean of its divisors is an integer number (190521968).

Almost surely, 28659980252 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 8659980252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13717581696).

8659980252 is an abundant number, since it is smaller than the sum of its proper divisors (18775183140).

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

8659980252 is a wasteful number, since it uses less digits than its factorization.

8659980252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16408 (or 16403 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 8659980252 is about 93059.0148884029. The cubic root of 8659980252 is about 2053.5516659972.

The spelling of 8659980252 in words is "eight billion, six hundred fifty-nine million, nine hundred eighty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 84 99 126 132 154 193 198 231 252 308 386 396 462 579 693 772 924 1158 1351 1386 1737 2123 2316 2702 2772 3474 4053 4246 5404 6369 6948 8106 8492 12159 12738 14861 16187 16212 19107 24318 25476 29722 32374 38214 44583 48561 48636 59444 64748 76428 89166 97122 113309 133749 145683 178057 178332 194244 226618 267498 291366 339927 356114 453236 534171 534996 582732 679854 712228 1019781 1068342 1246399 1359708 1602513 2039562 2136684 2492798 3124091 3205026 3739197 4079124 4985596 6248182 6410052 7478394 9372273 11217591 12496364 14956788 18744546 21868637 22435182 28116819 34365001 37489092 43737274 44870364 56233638 65605911 68730002 87474548 103095003 112467276 131211822 137460004 196817733 206190006 240555007 262423644 309285009 393635466 412380012 481110014 618570018 721665021 787270932 962220028 1237140036 1443330042 2164995063 2886660084 4329990126 8659980252