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143428120 = 23511409797
BaseRepresentation
bin10001000110010…
…00101000011000
3100222212220101121
420203020220120
5243204144440
622122055024
73361055533
oct1043105030
9328786347
10143428120
1173a63740
124004a474
132393a814
1415097a1a
15c8d234a
hex88c8a18

143428120 has 64 divisors (see below), whose sum is σ = 353354400. Its totient is φ = 51962880.

The previous prime is 143428081. The next prime is 143428139. The reversal of 143428120 is 21824341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179562 + ... + 180358.

Almost surely, 2143428120 is an apocalyptic number.

143428120 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 143428120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176677200).

143428120 is an abundant number, since it is smaller than the sum of its proper divisors (209926280).

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

143428120 is a wasteful number, since it uses less digits than its factorization.

143428120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 143428120 is about 11976.1479616778. The cubic root of 143428120 is about 523.4534927229.

The spelling of 143428120 in words is "one hundred forty-three million, four hundred twenty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 409 440 797 818 1594 1636 2045 3188 3272 3985 4090 4499 6376 7970 8180 8767 8998 15940 16360 17534 17996 22495 31880 35068 35992 43835 44990 70136 87670 89980 175340 179960 325973 350680 651946 1303892 1629865 2607784 3259730 3585703 6519460 7171406 13038920 14342812 17928515 28685624 35857030 71714060 143428120