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805300900 = 22528053009
BaseRepresentation
bin101111111111111…
…110101010100100
32002010022112011021
4233333332222210
53122124112100
6211524220524
725645642015
oct5777765244
92063275137
10805300900
11383631538
121a583a744
13caaba911
1478d4900c
154aa72a1a
hex2fffeaa4

805300900 has 18 divisors (see below), whose sum is σ = 1747503170. Its totient is φ = 322120320.

The previous prime is 805300889. The next prime is 805300901. The reversal of 805300900 is 9003508.

It can be written as a sum of positive squares in 3 ways, for example, as 13778944 + 791521956 = 3712^2 + 28134^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (805300901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4026405 + ... + 4026604.

Almost surely, 2805300900 is an apocalyptic number.

It is an amenable number.

805300900 is an abundant number, since it is smaller than the sum of its proper divisors (942202270).

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

805300900 is a wasteful number, since it uses less digits than its factorization.

805300900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8053023 (or 8053016 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 805300900 is about 28377.8240885379. The cubic root of 805300900 is about 930.3636378091.

The spelling of 805300900 in words is "eight hundred five million, three hundred thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 8053009 16106018 32212036 40265045 80530090 161060180 201325225 402650450 805300900