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143520090 = 23574179211
BaseRepresentation
bin10001000110111…
…11000101011010
3101000001120112220
420203133011122
5243220120330
622124044510
73361620630
oct1043370532
9330046486
10143520090
117401684a
1240093736
132397063c
14150bd350
15c8ee710
hex88df15a

143520090 has 128 divisors (see below), whose sum is σ = 410296320. Its totient is φ = 31449600.

The previous prime is 143520089. The next prime is 143520107. The reversal of 143520090 is 90025341.

143520090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 143520090.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 680085 + ... + 680295.

It is an arithmetic number, because the mean of its divisors is an integer number (3205440).

Almost surely, 2143520090 is an apocalyptic number.

143520090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143520090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205148160).

143520090 is an abundant number, since it is smaller than the sum of its proper divisors (266776230).

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

143520090 is a wasteful number, since it uses less digits than its factorization.

143520090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 143520090 is about 11979.9870617626. The cubic root of 143520090 is about 523.5653530085.

The spelling of 143520090 in words is "one hundred forty-three million, five hundred twenty thousand, ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 41 42 70 79 82 105 123 158 205 210 211 237 246 287 395 410 422 474 553 574 615 633 790 861 1055 1106 1185 1230 1266 1435 1477 1659 1722 2110 2370 2765 2870 2954 3165 3239 3318 4305 4431 5530 6330 6478 7385 8295 8610 8651 8862 9717 14770 16195 16590 16669 17302 19434 22155 22673 25953 32390 33338 43255 44310 45346 48585 50007 51906 60557 68019 83345 86510 97170 100014 113365 116683 121114 129765 136038 166690 181671 226730 233366 250035 259530 302785 340095 350049 363342 500070 583415 605570 680190 683429 700098 908355 1166830 1366858 1750245 1816710 2050287 3417145 3500490 4100574 4784003 6834290 9568006 10251435 14352009 20502870 23920015 28704018 47840030 71760045 143520090