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868260480 = 27351923801
BaseRepresentation
bin110011110000001…
…001101010000000
32020111210012110120
4303300021222000
53234233313410
6222053500240
730342043443
oct6360115200
92214705416
10868260480
11406123a4a
12202941680
1310ab629c9
148345765a
155135c570
hex33c09a80

868260480 has 128 divisors (see below), whose sum is σ = 2913364800. Its totient is φ = 219340800.

The previous prime is 868260451. The next prime is 868260509. The reversal of 868260480 is 84062868.

It is an interprime number because it is at equal distance from previous prime (868260451) and next prime (868260509).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×8682604802 = 1507752522259660800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24580 + ... + 48380.

Almost surely, 2868260480 is an apocalyptic number.

868260480 is a gapful number since it is divisible by the number (80) 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 868260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456682400).

868260480 is an abundant number, since it is smaller than the sum of its proper divisors (2045104320).

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

868260480 is a wasteful number, since it uses less digits than its factorization.

868260480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23842 (or 23830 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 868260480 is about 29466.2600273601. The cubic root of 868260480 is about 954.0035951326.

The spelling of 868260480 in words is "eight hundred sixty-eight million, two hundred sixty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 48 57 60 64 76 80 95 96 114 120 128 152 160 190 192 228 240 285 304 320 380 384 456 480 570 608 640 760 912 960 1140 1216 1520 1824 1920 2280 2432 3040 3648 4560 6080 7296 9120 12160 18240 23801 36480 47602 71403 95204 119005 142806 190408 238010 285612 357015 380816 452219 476020 571224 714030 761632 904438 952040 1142448 1356657 1428060 1523264 1808876 1904080 2261095 2284896 2713314 2856120 3046528 3617752 3808160 4522190 4569792 5426628 5712240 6783285 7235504 7616320 9044380 9139584 10853256 11424480 13566570 14471008 15232640 18088760 21706512 22848960 27133140 28942016 36177520 43413024 45697920 54266280 57884032 72355040 86826048 108532560 144710080 173652096 217065120 289420160 434130240 868260480