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47869565920 = 2551134977933
BaseRepresentation
bin101100100101001111…
…111001101111100000
311120120010000220110221
4230211033321233200
51241014102102140
633554014532424
73313152411451
oct544517715740
9146503026427
1047869565920
1119335138430
12933b507114
13468b587447
142461801128
1513a281a14a
hexb253f9be0

47869565920 has 96 divisors (see below), whose sum is σ = 123728018400. Its totient is φ = 17357015040.

The previous prime is 47869565897. The next prime is 47869565951. The reversal of 47869565920 is 2956596874.

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, 575274 + ... + 653206.

It is an arithmetic number, because the mean of its divisors is an integer number (1288833525).

Almost surely, 247869565920 is an apocalyptic number.

47869565920 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 47869565920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61864009200).

47869565920 is an abundant number, since it is smaller than the sum of its proper divisors (75858452480).

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

47869565920 is a wasteful number, since it uses less digits than its factorization.

47869565920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78308 (or 78300 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 47869565920 in words is "forty-seven billion, eight hundred sixty-nine million, five hundred sixty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 349 352 440 698 880 1396 1745 1760 2792 3490 3839 5584 6980 7678 11168 13960 15356 19195 27920 30712 38390 55840 61424 76780 77933 122848 153560 155866 307120 311732 389665 614240 623464 779330 857263 1246928 1558660 1714526 2493856 3117320 3429052 4286315 6234640 6858104 8572630 12469280 13716208 17145260 27198617 27432416 34290520 54397234 68581040 108794468 135993085 137162080 217588936 271986170 299184787 435177872 543972340 598369574 870355744 1087944680 1196739148 1495923935 2175889360 2393478296 2991847870 4351778720 4786956592 5983695740 9573913184 11967391480 23934782960 47869565920