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806231040 = 2103552489
BaseRepresentation
bin110000000011100…
…001110000000000
32002012001210001220
4300003201300000
53122343343130
6212000155040
725656564546
oct6003416000
92065053056
10806231040
1138410734a
121a6008a80
13cb0550b4
147910bd96
154aba8410
hex300e1c00

806231040 has 88 divisors (see below), whose sum is σ = 2578728720. Its totient is φ = 214990848.

The previous prime is 806231039. The next prime is 806231087. The reversal of 806231040 is 40132608.

It is a happy number.

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

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 806231040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10885 + ... + 41604.

Almost surely, 2806231040 is an apocalyptic number.

806231040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

806231040 is an abundant number, since it is smaller than the sum of its proper divisors (1772497680).

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

806231040 is a wasteful number, since it uses less digits than its factorization.

806231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52517 (or 52499 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 806231040 is about 28394.2078600548. The cubic root of 806231040 is about 930.7216967138.

Adding to 806231040 its reverse (40132608), we get a palindrome (846363648).

The spelling of 806231040 in words is "eight hundred six million, two hundred thirty-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2560 3072 3840 5120 7680 15360 52489 104978 157467 209956 262445 314934 419912 524890 629868 787335 839824 1049780 1259736 1574670 1679648 2099560 2519472 3149340 3359296 4199120 5038944 6298680 6718592 8398240 10077888 12597360 13437184 16796480 20155776 25194720 26874368 33592960 40311552 50389440 53748736 67185920 80623104 100778880 134371840 161246208 201557760 268743680 403115520 806231040