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806412800 = 29522512
BaseRepresentation
bin110000000100001…
…110001000000000
32002012102000101202
4300010032020000
53122420202200
6212004120332
725661252504
oct6004161000
92065360352
10806412800
11384220966
121a60960a8
13cb0b9a4b
1479158304
154abe21d5
hex3010e200

806412800 has 90 divisors (see below), whose sum is σ = 2005942389. Its totient is φ = 321280000.

The previous prime is 806412787. The next prime is 806412829. The reversal of 806412800 is 8214608.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 790284544 + 16128256 = 28112^2 + 4016^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=20080.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3212675 + ... + 3212925.

Almost surely, 2806412800 is an apocalyptic number.

806412800 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 806412800

806412800 is an abundant number, since it is smaller than the sum of its proper divisors (1199529589).

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

806412800 is an frugal number, since it uses more digits than its factorization.

806412800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 806412800 is about 28397.4083324517. The cubic root of 806412800 is about 930.7916333516.

The spelling of 806412800 in words is "eight hundred six million, four hundred twelve thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 251 256 320 400 502 512 640 800 1004 1255 1280 1600 2008 2510 2560 3200 4016 5020 6275 6400 8032 10040 12550 12800 16064 20080 25100 32128 40160 50200 63001 64256 80320 100400 126002 128512 160640 200800 252004 315005 321280 401600 504008 630010 642560 803200 1008016 1260020 1575025 1606400 2016032 2520040 3150050 3212800 4032064 5040080 6300100 8064128 10080160 12600200 16128256 20160320 25200400 32256512 40320640 50400800 80641280 100801600 161282560 201603200 403206400 806412800