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143018928 = 243213194021
BaseRepresentation
bin10001000011001…
…00101110110000
3100222010010002100
420201210232300
5243103101203
622105220400
73354432543
oct1041445660
9328103070
10143018928
1173804268
123ba91700
13238264b0
1414dcc85a
15c850ea3
hex8864bb0

143018928 has 120 divisors (see below), whose sum is σ = 453842480. Its totient is φ = 41679360.

The previous prime is 143018881. The next prime is 143018933. The reversal of 143018928 is 829810341.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 143018892 and 143018901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33558 + ... + 37578.

Almost surely, 2143018928 is an apocalyptic number.

143018928 is a gapful number since it is divisible by the number (18) 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 143018928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226921240).

143018928 is an abundant number, since it is smaller than the sum of its proper divisors (310823552).

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

143018928 is a wasteful number, since it uses less digits than its factorization.

143018928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 143018928 is about 11959.0521363526. The cubic root of 143018928 is about 522.9552245581.

The spelling of 143018928 in words is "one hundred forty-three million, eighteen thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 19 24 26 36 38 39 48 52 57 72 76 78 104 114 117 144 152 156 171 208 228 234 247 304 312 342 456 468 494 624 684 741 912 936 988 1368 1482 1872 1976 2223 2736 2964 3952 4021 4446 5928 8042 8892 11856 12063 16084 17784 24126 32168 35568 36189 48252 52273 64336 72378 76399 96504 104546 144756 152798 156819 193008 209092 229197 289512 305596 313638 418184 458394 470457 579024 611192 627276 687591 836368 916788 940914 993187 1222384 1254552 1375182 1833576 1881828 1986374 2509104 2750364 2979561 3667152 3763656 3972748 5500728 5959122 7527312 7945496 8938683 11001456 11918244 15890992 17877366 23836488 35754732 47672976 71509464 143018928