Search a number
-
+
1801830912 = 29371031627
BaseRepresentation
bin110101101100101…
…1100001000000000
311122120110111100020
41223121130020000
512142232042122
6454443253440
762436211230
oct15331341000
94576414306
101801830912
118450a5262
1242351a280
132293b154b
14131431cc0
15a82bac5c
hex6b65c200

1801830912 has 160 divisors (see below), whose sum is σ = 5542597632. Its totient is φ = 509497344.

The previous prime is 1801830893. The next prime is 1801830923. The reversal of 1801830912 is 2190381081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1106643 + ... + 1108269.

Almost surely, 21801830912 is an apocalyptic number.

1801830912 is a gapful number since it is divisible by the number (12) 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 1801830912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2771298816).

1801830912 is an abundant number, since it is smaller than the sum of its proper divisors (3740766720).

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

1801830912 is a wasteful number, since it uses less digits than its factorization.

1801830912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1801830912 is about 42447.9788918153. The cubic root of 1801830912 is about 1216.8527029300.

The spelling of 1801830912 in words is "one billion, eight hundred one million, eight hundred thirty thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 103 112 128 168 192 206 224 256 309 336 384 412 448 512 618 672 721 768 824 896 1236 1344 1442 1536 1627 1648 1792 2163 2472 2688 2884 3254 3296 3584 4326 4881 4944 5376 5768 6508 6592 8652 9762 9888 10752 11389 11536 13016 13184 17304 19524 19776 22778 23072 26032 26368 34167 34608 39048 39552 45556 46144 52064 52736 68334 69216 78096 79104 91112 92288 104128 136668 138432 156192 158208 167581 182224 184576 208256 273336 276864 312384 335162 364448 369152 416512 502743 546672 553728 624768 670324 728896 833024 1005486 1093344 1107456 1173067 1249536 1340648 1457792 2010972 2186688 2346134 2499072 2681296 2915584 3519201 4021944 4373376 4692268 5362592 5831168 7038402 8043888 8746752 9384536 10725184 14076804 16087776 17493504 18769072 21450368 28153608 32175552 37538144 42900736 56307216 64351104 75076288 85801472 112614432 128702208 150152576 225228864 257404416 300305152 450457728 600610304 900915456 1801830912