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143204124 = 2237173347
BaseRepresentation
bin10001000100100…
…01111100011100
3100222110112010110
420202101330130
5243130012444
622113210020
73356133510
oct1042217434
9328415113
10143204124
1173920418
123bb60910
132388c88b
141503a140
15c88acb9
hex8891f1c

143204124 has 96 divisors (see below), whose sum is σ = 406909440. Its totient is φ = 38397696.

The previous prime is 143204111. The next prime is 143204129. The reversal of 143204124 is 421402341.

It is a super-2 number, since 2×1432041242 = 41014842261214752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 143204124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143204129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412519 + ... + 412865.

It is an arithmetic number, because the mean of its divisors is an integer number (4238640).

Almost surely, 2143204124 is an apocalyptic number.

143204124 is a gapful number since it is divisible by the number (14) 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 143204124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203454720).

143204124 is an abundant number, since it is smaller than the sum of its proper divisors (263705316).

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

143204124 is a wasteful number, since it uses less digits than its factorization.

143204124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 143204124 is about 11966.7925527269. The cubic root of 143204124 is about 523.1808530668.

Adding to 143204124 its reverse (421402341), we get a palindrome (564606465).

The spelling of 143204124 in words is "one hundred forty-three million, two hundred four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 51 68 84 102 119 204 238 289 347 357 476 578 694 714 867 1041 1156 1388 1428 1734 2023 2082 2429 3468 4046 4164 4858 4913 5899 6069 7287 8092 9716 9826 11798 12138 14574 14739 17697 19652 23596 24276 29148 29478 34391 35394 41293 58956 68782 70788 82586 100283 103173 123879 137564 165172 200566 206346 247758 300849 401132 412692 495516 601698 701981 1203396 1403962 1704811 2105943 2807924 3409622 4211886 5114433 6819244 8423772 10228866 11933677 20457732 23867354 35801031 47734708 71602062 143204124