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1804864464 = 2433132389157
BaseRepresentation
bin110101110010100…
…0000101111010000
311122210011121121000
41223211000233100
512144021130324
6455032302000
762504044344
oct15345005720
94583147530
101804864464
11846887427
12424541900
13229c04250
141319c1624
15a86b99c9
hex6b940bd0

1804864464 has 320 divisors, whose sum is σ = 5924620800. Its totient is φ = 521883648.

The previous prime is 1804864459. The next prime is 1804864489. The reversal of 1804864464 is 4644684081.

1804864464 is a `hidden beast` number, since 180 + 4 + 8 + 6 + 4 + 464 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11495874 + ... + 11496030.

It is an arithmetic number, because the mean of its divisors is an integer number (18514440).

Almost surely, 21804864464 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 1804864464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2962310400).

1804864464 is an abundant number, since it is smaller than the sum of its proper divisors (4119756336).

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

1804864464 is a wasteful number, since it uses less digits than its factorization.

1804864464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The square root of 1804864464 is about 42483.6964493440. The cubic root of 1804864464 is about 1217.5352154164.

The spelling of 1804864464 in words is "one billion, eight hundred four million, eight hundred sixty-four thousand, four hundred sixty-four".