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143030 = 2514303
BaseRepresentation
bin100010111010110110
321021012102
4202322312
514034110
63022102
71133666
oct427266
9237172
10143030
1198508
126a932
1350144
143a1a6
152c5a5
hex22eb6

143030 has 8 divisors (see below), whose sum is σ = 257472. Its totient is φ = 57208.

The previous prime is 142993. The next prime is 143053. The reversal of 143030 is 30341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

143030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7142 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (32184).

2143030 is an apocalyptic number.

143030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143030 is a deficient number, since it is larger than the sum of its proper divisors (114442).

143030 is a wasteful number, since it uses less digits than its factorization.

143030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14310.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 143030 is about 378.1930723850. The cubic root of 143030 is about 52.2968719301.

Adding to 143030 its reverse (30341), we get a palindrome (173371).

The spelling of 143030 in words is "one hundred forty-three thousand, thirty".

Divisors: 1 2 5 10 14303 28606 71515 143030