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804810380 = 2251127113499
BaseRepresentation
bin101111111110000…
…110111010001100
32002002101121021212
4233332012322030
53122012413010
6211505513552
725641526643
oct5776067214
92062347255
10804810380
11383326a50
121a56428b8
13ca97857a
1478c5c35a
154a9c7505
hex2ff86e8c

804810380 has 48 divisors (see below), whose sum is σ = 1850688000. Its totient is φ = 291556800.

The previous prime is 804810373. The next prime is 804810427. The reversal of 804810380 is 83018408.

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, 52871 + ... + 66369.

It is an arithmetic number, because the mean of its divisors is an integer number (38556000).

Almost surely, 2804810380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804810380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925344000).

804810380 is an abundant number, since it is smaller than the sum of its proper divisors (1045877620).

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

804810380 is a wasteful number, since it uses less digits than its factorization.

804810380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790 (or 13788 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 804810380 is about 28369.1801079975. The cubic root of 804810380 is about 930.1747002903.

Adding to 804810380 its reverse (83018408), we get a palindrome (887828788).

The spelling of 804810380 in words is "eight hundred four million, eight hundred ten thousand, three hundred eighty".