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143442300 = 223521493209
BaseRepresentation
bin10001000110011…
…00000101111100
3100222220121211210
420203030011330
5243210123200
622122244420
73361145061
oct1043140574
9328817753
10143442300
1173a73361
1240056710
1323944101
141509cc68
15c8d6650
hex88cc17c

143442300 has 72 divisors (see below), whose sum is σ = 417942000. Its totient is φ = 37982720.

The previous prime is 143442289. The next prime is 143442307. The reversal of 143442300 is 3244341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143442307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43096 + ... + 46304.

It is an arithmetic number, because the mean of its divisors is an integer number (5804750).

Almost surely, 2143442300 is an apocalyptic number.

143442300 is a gapful number since it is divisible by the number (10) 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 143442300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208971000).

143442300 is an abundant number, since it is smaller than the sum of its proper divisors (274499700).

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

143442300 is a wasteful number, since it uses less digits than its factorization.

143442300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143442300 is about 11976.7399571002. The cubic root of 143442300 is about 523.4707425387.

Adding to 143442300 its reverse (3244341), we get a palindrome (146686641).

It can be divided in two parts, 1434 and 42300, that added together give a palindrome (43734).

The spelling of 143442300 in words is "one hundred forty-three million, four hundred forty-two thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 149 150 298 300 447 596 745 894 1490 1788 2235 2980 3209 3725 4470 6418 7450 8940 9627 11175 12836 14900 16045 19254 22350 32090 38508 44700 48135 64180 80225 96270 160450 192540 240675 320900 478141 481350 956282 962700 1434423 1912564 2390705 2868846 4781410 5737692 7172115 9562820 11953525 14344230 23907050 28688460 35860575 47814100 71721150 143442300