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143380 = 22567107
BaseRepresentation
bin100011000000010100
321021200101
4203000110
514042010
63023444
71135006
oct430024
9237611
10143380
11987a6
126ab84
1350353
143a376
152c73a
hex23014

143380 has 24 divisors (see below), whose sum is σ = 308448. Its totient is φ = 55968.

The previous prime is 143357. The next prime is 143387. The reversal of 143380 is 83341.

143380 = T29 + T30 + ... + T95.

143380 is a nontrivial binomial coefficient, being equal to C(536, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 1393.

It is an arithmetic number, because the mean of its divisors is an integer number (12852).

2143380 is an apocalyptic number.

143380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143380 is the 535-th triangular number and also the 268-th hexagonal number.

143380 is the 179-th centered nonagonal number.

It is an amenable number.

143380 is an abundant number, since it is smaller than the sum of its proper divisors (165068).

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

143380 is a wasteful number, since it uses less digits than its factorization.

143380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143380 is about 378.6555162678. The cubic root of 143380 is about 52.3394946789.

The spelling of 143380 in words is "one hundred forty-three thousand, three hundred eighty".