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284020000 = 2554111291
BaseRepresentation
bin10000111011011…
…100110100100000
3201210102201012021
4100323130310200
51040202120000
644103311224
710016062435
oct2073346440
9653381167
10284020000
1113635a480
127b14b514
1346ac4394
1429a13b8c
1519e0411a
hex10edcd20

284020000 has 120 divisors (see below), whose sum is σ = 762843312. Its totient is φ = 103200000.

The previous prime is 284019991. The next prime is 284020007. The reversal of 284020000 is 20482.

284020000 is digitally balanced in base 3, 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 (16).

It is not an unprimeable number, because it can be changed into a prime (284020007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219355 + ... + 220645.

Almost surely, 2284020000 is an apocalyptic number.

284020000 is a gapful number since it is divisible by the number (20) 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 284020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381421656).

284020000 is an abundant number, since it is smaller than the sum of its proper divisors (478823312).

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

284020000 is a wasteful number, since it uses less digits than its factorization.

284020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 284020000 is about 16852.8929267352. The cubic root of 284020000 is about 657.3292746845.

Adding to 284020000 its reverse (20482), we get a palindrome (284040482).

The spelling of 284020000 in words is "two hundred eighty-four million, twenty thousand".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 80 88 100 110 125 160 176 200 220 250 275 352 400 440 500 550 625 800 880 1000 1100 1250 1291 1375 1760 2000 2200 2500 2582 2750 4000 4400 5000 5164 5500 6455 6875 8800 10000 10328 11000 12910 13750 14201 20000 20656 22000 25820 27500 28402 32275 41312 44000 51640 55000 56804 64550 71005 103280 110000 113608 129100 142010 161375 206560 220000 227216 258200 284020 322750 355025 454432 516400 568040 645500 710050 806875 1032800 1136080 1291000 1420100 1613750 1775125 2272160 2582000 2840200 3227500 3550250 5164000 5680400 6455000 7100500 8875625 11360800 12910000 14201000 17751250 25820000 28402000 35502500 56804000 71005000 142010000 284020000