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8006143040 = 265719718143
BaseRepresentation
bin1110111010011010…
…00000110001000000
3202122221222012120022
413131031000301000
5112344033034130
63402235233012
7402254043620
oct73515006100
922587865508
108006143040
113439293845
1216752a8768
139a78b425c
1455d426880
1531cd107e5
hex1dd340c40

8006143040 has 112 divisors (see below), whose sum is σ = 21899953152. Its totient is φ = 2730878976.

The previous prime is 8006142971. The next prime is 8006143063. The reversal of 8006143040 is 403416008.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432209 + ... + 450351.

It is an arithmetic number, because the mean of its divisors is an integer number (195535296).

Almost surely, 28006143040 is an apocalyptic number.

8006143040 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 8006143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10949976576).

8006143040 is an abundant number, since it is smaller than the sum of its proper divisors (13893810112).

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

8006143040 is a wasteful number, since it uses less digits than its factorization.

8006143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18364 (or 18354 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 8006143040 is about 89477.0531477205. The cubic root of 8006143040 is about 2000.5117890248.

Adding to 8006143040 its reverse (403416008), we get a palindrome (8409559048).

The spelling of 8006143040 in words is "eight billion, six million, one hundred forty-three thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 197 224 280 320 394 448 560 788 985 1120 1379 1576 1970 2240 2758 3152 3940 5516 6304 6895 7880 11032 12608 13790 15760 18143 22064 27580 31520 36286 44128 55160 63040 72572 88256 90715 110320 127001 145144 181430 220640 254002 290288 362860 441280 508004 580576 635005 725720 1016008 1161152 1270010 1451440 2032016 2540020 2902880 3574171 4064032 5080040 5805760 7148342 8128064 10160080 14296684 17870855 20320160 25019197 28593368 35741710 40640320 50038394 57186736 71483420 100076788 114373472 125095985 142966840 200153576 228746944 250191970 285933680 400307152 500383940 571867360 800614304 1000767880 1143734720 1601228608 2001535760 4003071520 8006143040