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28847142360 = 23385109919
BaseRepresentation
bin11010110111011011…
…000111010111011000
32202110101222200000000
4122313123013113120
5433034332023420
621130250213000
72040600443601
oct326733072730
982411880000
1028847142360
1111263507023
125710a24160
13294959840a
1415792aada8
15b3c801690
hex6b76c75d8

28847142360 has 144 divisors (see below), whose sum is σ = 97355044800. Its totient is φ = 7692501312.

The previous prime is 28847142347. The next prime is 28847142431. The reversal of 28847142360 is 6324174882.

It is a happy number.

28847142360 is a `hidden beast` number, since 2 + 88 + 471 + 42 + 3 + 60 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 207481 + ... + 317399.

It is an arithmetic number, because the mean of its divisors is an integer number (676076700).

Almost surely, 228847142360 is an apocalyptic number.

28847142360 is a gapful number since it is divisible by the number (20) 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 28847142360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48677522400).

28847142360 is an abundant number, since it is smaller than the sum of its proper divisors (68507902440).

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

28847142360 is an equidigital number, since it uses as much as digits as its factorization.

28847142360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109954 (or 109929 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 28847142360 in words is "twenty-eight billion, eight hundred forty-seven million, one hundred forty-two thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 243 270 324 360 405 486 540 648 729 810 972 1080 1215 1458 1620 1944 2187 2430 2916 3240 3645 4374 4860 5832 6561 7290 8748 9720 10935 13122 14580 17496 21870 26244 29160 32805 43740 52488 65610 87480 109919 131220 219838 262440 329757 439676 549595 659514 879352 989271 1099190 1319028 1648785 1978542 2198380 2638056 2967813 3297570 3957084 4396760 4946355 5935626 6595140 7914168 8903439 9892710 11871252 13190280 14839065 17806878 19785420 23742504 26710317 29678130 35613756 39570840 44517195 53420634 59356260 71227512 80130951 89034390 106841268 118712520 133551585 160261902 178068780 213682536 240392853 267103170 320523804 356137560 400654755 480785706 534206340 641047608 721178559 801309510 961571412 1068412680 1201964265 1442357118 1602619020 1923142824 2403928530 2884714236 3205238040 3605892795 4807857060 5769428472 7211785590 9615714120 14423571180 28847142360