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512983980 = 2232543191347
BaseRepresentation
bin11110100100111…
…000001110101100
31022202021021201200
4132210320032230
52022310441410
6122523005500
715466202055
oct3644701654
91282237650
10512983980
11243625503
12123969890
138237cc22
144c1b572c
15300803c0
hex1e9383ac

512983980 has 144 divisors (see below), whose sum is σ = 1605187584. Its totient is φ = 132531840.

The previous prime is 512983969. The next prime is 512984009. The reversal of 512983980 is 89389215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1478167 + ... + 1478513.

It is an arithmetic number, because the mean of its divisors is an integer number (11147136).

Almost surely, 2512983980 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 512983980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802593792).

512983980 is an abundant number, since it is smaller than the sum of its proper divisors (1092203604).

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

512983980 is a wasteful number, since it uses less digits than its factorization.

512983980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 512983980 is about 22649.1496529119. The cubic root of 512983980 is about 800.5121616264.

It can be divided in two parts, 51298 and 3980, that added together give a triangular number (55278 = T332).

The spelling of 512983980 in words is "five hundred twelve million, nine hundred eighty-three thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 43 45 60 86 90 129 172 180 191 215 258 347 382 387 430 516 573 645 694 764 774 860 955 1041 1146 1290 1388 1548 1719 1735 1910 1935 2082 2292 2580 2865 3123 3438 3470 3820 3870 4164 5205 5730 6246 6876 6940 7740 8213 8595 10410 11460 12492 14921 15615 16426 17190 20820 24639 29842 31230 32852 34380 41065 44763 49278 59684 62460 66277 73917 74605 82130 89526 98556 123195 132554 134289 147834 149210 164260 179052 198831 223815 246390 265108 268578 295668 298420 331385 369585 397662 447630 492780 537156 596493 662770 671445 739170 795324 895260 994155 1192986 1325540 1342890 1478340 1988310 2385972 2685780 2849911 2982465 3976620 5699822 5964930 8549733 11399644 11929860 14249555 17099466 25649199 28499110 34198932 42748665 51298398 56998220 85497330 102596796 128245995 170994660 256491990 512983980