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8491471104 = 28379173809
BaseRepresentation
bin1111110100010000…
…11001000100000000
3210220210012102111210
413322020121010000
5114342304033404
63522333410120
7420266212344
oct77210310400
923823172453
108491471104
113668239a16
12178b939940
13a5430011c
145a7a7d624
1534a72b689
hex1fa219100

8491471104 has 144 divisors (see below), whose sum is σ = 23046508800. Its totient is φ = 2775072768.

The previous prime is 8491471081. The next prime is 8491471133. The reversal of 8491471104 is 4011741948.

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, 10495852 + ... + 10496660.

It is an arithmetic number, because the mean of its divisors is an integer number (160045200).

Almost surely, 28491471104 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 8491471104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11523254400).

8491471104 is an abundant number, since it is smaller than the sum of its proper divisors (14555037696).

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

8491471104 is a wasteful number, since it uses less digits than its factorization.

8491471104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 8491471104 is about 92149.1785313358. The cubic root of 8491471104 is about 2040.1447340603.

The spelling of 8491471104 in words is "eight billion, four hundred ninety-one million, four hundred seventy-one thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 79 96 128 158 173 192 237 256 316 346 384 474 519 632 692 768 809 948 1038 1264 1384 1618 1896 2076 2427 2528 2768 3236 3792 4152 4854 5056 5536 6472 7584 8304 9708 10112 11072 12944 13667 15168 16608 19416 20224 22144 25888 27334 30336 33216 38832 41001 44288 51776 54668 60672 63911 66432 77664 82002 103552 109336 127822 132864 139957 155328 164004 191733 207104 218672 255644 279914 310656 328008 383466 419871 437344 511288 559828 621312 656016 766932 839742 874688 1022576 1119656 1312032 1533864 1679484 1749376 2045152 2239312 2624064 3067728 3358968 3498752 4090304 4478624 5248128 6135456 6717936 8180608 8957248 10496256 11056603 12270912 13435872 16361216 17914496 22113206 24541824 26871744 33169809 35828992 44226412 49083648 53743488 66339618 88452824 107486976 132679236 176905648 265358472 353811296 530716944 707622592 1061433888 1415245184 2122867776 2830490368 4245735552 8491471104