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1000078080 = 28351371901
BaseRepresentation
bin111011100110111…
…111101100000000
32120200211020012220
4323212333230000
54022004444310
6243123051040
733532344351
oct7346775400
92520736186
101000078080
11473577511
1223ab10a80
1312c2668a1
1496b6bd28
155cbe9670
hex3b9bfb00

1000078080 has 144 divisors (see below), whose sum is σ = 3219005664. Its totient is φ = 264601600.

The previous prime is 1000078067. The next prime is 1000078087. The reversal of 1000078080 is 808700001.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1000078080.

It is not an unprimeable number, because it can be changed into a prime (1000078087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525130 + ... + 527030.

It is an arithmetic number, because the mean of its divisors is an integer number (22354206).

Almost surely, 21000078080 is an apocalyptic number.

1000078080 is a gapful number since it is divisible by the number (10) 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 1000078080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609502832).

1000078080 is an abundant number, since it is smaller than the sum of its proper divisors (2218927584).

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

1000078080 is a wasteful number, since it uses less digits than its factorization.

1000078080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1000078080 is about 31624.0111307848. The cubic root of 1000078080 is about 1000.0260259893.

Adding to 1000078080 its reverse (808700001), we get a palindrome (1808778081).

The spelling of 1000078080 in words is "one billion, seventy-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 137 160 192 240 256 274 320 384 411 480 548 640 685 768 822 960 1096 1280 1370 1644 1901 1920 2055 2192 2740 3288 3802 3840 4110 4384 5480 5703 6576 7604 8220 8768 9505 10960 11406 13152 15208 16440 17536 19010 21920 22812 26304 28515 30416 32880 35072 38020 43840 45624 52608 57030 60832 65760 76040 87680 91248 105216 114060 121664 131520 152080 175360 182496 228120 243328 260437 263040 304160 364992 456240 486656 520874 526080 608320 729984 781311 912480 1041748 1216640 1302185 1459968 1562622 1824960 2083496 2433280 2604370 3125244 3649920 3906555 4166992 5208740 6250488 7299840 7813110 8333984 10417480 12500976 15626220 16667968 20834960 25001952 31252440 33335936 41669920 50003904 62504880 66671872 83339840 100007808 125009760 166679680 200015616 250019520 333359360 500039040 1000078080