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142831030 = 2514283103
BaseRepresentation
bin10001000001101…
…10110110110110
3100221202120100011
420200312312312
5243031043110
622101210434
73353020666
oct1040666666
9327676304
10142831030
1173696081
123ba00a1a
132378bb04
1414d801a6
15c81548a
hex8836db6

142831030 has 8 divisors (see below), whose sum is σ = 257095872. Its totient is φ = 57132408.

The previous prime is 142831021. The next prime is 142831067. The reversal of 142831030 is 30138241.

142831030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 142830992 and 142831010.

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, 7141542 + ... + 7141561.

It is an arithmetic number, because the mean of its divisors is an integer number (32136984).

Almost surely, 2142831030 is an apocalyptic number.

142831030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142831030 is a deficient number, since it is larger than the sum of its proper divisors (114264842).

142831030 is a wasteful number, since it uses less digits than its factorization.

142831030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283110.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 142831030 is about 11951.1936642329. The cubic root of 142831030 is about 522.7261049914.

Adding to 142831030 its reverse (30138241), we get a palindrome (172969271).

The spelling of 142831030 in words is "one hundred forty-two million, eight hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 14283103 28566206 71415515 142831030