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143204252 = 22313972909
BaseRepresentation
bin10001000100100…
…01111110011100
3100222110112022012
420202101332130
5243130014002
622113210352
73356134052
oct1042217634
9328415265
10143204252
1173920524
123bb609b8
132388c959
141503a1d2
15c88ad52
hex8891f9c

143204252 has 24 divisors (see below), whose sum is σ = 259432320. Its totient is φ = 69094080.

The previous prime is 143204239. The next prime is 143204261. The reversal of 143204252 is 252402341.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47774 + ... + 50682.

It is an arithmetic number, because the mean of its divisors is an integer number (10809680).

Almost surely, 2143204252 is an apocalyptic number.

It is an amenable number.

143204252 is a deficient number, since it is larger than the sum of its proper divisors (116228068).

143204252 is a wasteful number, since it uses less digits than its factorization.

143204252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341 (or 3339 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 143204252 is about 11966.7979008589. The cubic root of 143204252 is about 523.1810089448.

Adding to 143204252 its reverse (252402341), we get a palindrome (395606593).

The spelling of 143204252 in words is "one hundred forty-three million, two hundred four thousand, two hundred fifty-two".

Divisors: 1 2 4 31 62 124 397 794 1588 2909 5818 11636 12307 24614 49228 90179 180358 360716 1154873 2309746 4619492 35801063 71602126 143204252