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1800004464 = 243319321589
BaseRepresentation
bin110101101001001…
…1110001101110000
311122110000200221000
41223102132031300
512141300120324
6454340202000
762414533266
oct15322361560
94573020830
101800004464
11844067aa5
12422999300
13228bc20cb
141310b8436
15a80599c9
hex6b49e370

1800004464 has 80 divisors (see below), whose sum is σ = 5193690400. Its totient is φ = 596865024.

The previous prime is 1800004433. The next prime is 1800004499. The reversal of 1800004464 is 4644000081.

1800004464 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 72582 + ... + 94170.

It is an arithmetic number, because the mean of its divisors is an integer number (64921130).

Almost surely, 21800004464 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 1800004464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596845200).

1800004464 is an abundant number, since it is smaller than the sum of its proper divisors (3393685936).

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

1800004464 is a wasteful number, since it uses less digits than its factorization.

1800004464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21799 (or 21787 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1800004464 is about 42426.4594799048. The cubic root of 1800004464 is about 1216.4414047046.

The spelling of 1800004464 in words is "one billion, eight hundred million, four thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 193 216 386 432 579 772 1158 1544 1737 2316 3088 3474 4632 5211 6948 9264 10422 13896 20844 21589 27792 41688 43178 64767 83376 86356 129534 172712 194301 259068 345424 388602 518136 582903 777204 1036272 1165806 1554408 2331612 3108816 4166677 4663224 8333354 9326448 12500031 16666708 25000062 33333416 37500093 50000124 66666832 75000186 100000248 112500279 150000372 200000496 225000558 300000744 450001116 600001488 900002232 1800004464