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8006040 = 233457353
BaseRepresentation
bin11110100010100110011000
3120001202020000
4132202212120
54022143130
6443333000
7125023140
oct36424630
916052200
108006040
114579069
122821160
131874103
1410c5920
15a82260
hex7a2998

8006040 has 160 divisors (see below), whose sum is σ = 30840480. Its totient is φ = 1824768.

The previous prime is 8006039. The next prime is 8006057. The reversal of 8006040 is 406008.

8006040 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 22504 + ... + 22856.

It is an arithmetic number, because the mean of its divisors is an integer number (192753).

Almost surely, 28006040 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 8006040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15420240).

8006040 is an abundant number, since it is smaller than the sum of its proper divisors (22834440).

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

8006040 is a wasteful number, since it uses less digits than its factorization.

8006040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 8006040 is about 2829.4946545276. The cubic root of 8006040 is about 200.0503206714.

The spelling of 8006040 in words is "eight million, six thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 63 70 72 81 84 90 105 108 120 126 135 140 162 168 180 189 210 216 252 270 280 315 324 353 360 378 405 420 504 540 567 630 648 706 756 810 840 945 1059 1080 1134 1260 1412 1512 1620 1765 1890 2118 2268 2471 2520 2824 2835 3177 3240 3530 3780 4236 4536 4942 5295 5670 6354 7060 7413 7560 8472 9531 9884 10590 11340 12355 12708 14120 14826 15885 19062 19768 21180 22239 22680 24710 25416 28593 29652 31770 37065 38124 42360 44478 47655 49420 57186 59304 63540 66717 74130 76248 88956 95310 98840 111195 114372 127080 133434 142965 148260 177912 190620 200151 222390 228744 266868 285930 296520 333585 381240 400302 444780 533736 571860 667170 800604 889560 1000755 1143720 1334340 1601208 2001510 2668680 4003020 8006040