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143231030 = 2514323103
BaseRepresentation
bin10001000100110…
…00100000110110
3100222111220000222
420202120200312
5243131343110
622113534342
73356305115
oct1042304066
9328456028
10143231030
1173939658
123bb743b2
132389bbb7
1415045c7c
15c893c55
hex8898836

143231030 has 8 divisors (see below), whose sum is σ = 257815872. Its totient is φ = 57292408.

The previous prime is 143231009. The next prime is 143231047. The reversal of 143231030 is 30132341.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7161542 + ... + 7161561.

It is an arithmetic number, because the mean of its divisors is an integer number (32226984).

Almost surely, 2143231030 is an apocalyptic number.

143231030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143231030 is a deficient number, since it is larger than the sum of its proper divisors (114584842).

143231030 is a wasteful number, since it uses less digits than its factorization.

143231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14323110.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 143231030 is about 11967.9166942288. The cubic root of 143231030 is about 523.2136170732.

Adding to 143231030 its reverse (30132341), we get a palindrome (173363371).

The spelling of 143231030 in words is "one hundred forty-three million, two hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 14323103 28646206 71615515 143231030