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142433030 = 2547303049
BaseRepresentation
bin10000111110101…
…01101100000110
3100221000100101102
420133111230012
5242430324110
622044500102
73346442435
oct1037255406
9327010342
10142433030
1173444053
123b84a632
132367c8cc
1414cb911c
15c7875a5
hex87d5b06

142433030 has 16 divisors (see below), whose sum is σ = 261835200. Its totient is φ = 55760832.

The previous prime is 142432991. The next prime is 142433033. The reversal of 142433030 is 30334241.

142433030 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 junction number, because it is equal to n+sod(n) for n = 142432993 and 142433011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142433033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151055 + ... + 151994.

It is an arithmetic number, because the mean of its divisors is an integer number (16364700).

Almost surely, 2142433030 is an apocalyptic number.

142433030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142433030 is a deficient number, since it is larger than the sum of its proper divisors (119402170).

142433030 is a wasteful number, since it uses less digits than its factorization.

142433030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303103.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 142433030 is about 11934.5309920415. The cubic root of 142433030 is about 522.2401262577.

Adding to 142433030 its reverse (30334241), we get a palindrome (172767271).

The spelling of 142433030 in words is "one hundred forty-two million, four hundred thirty-three thousand, thirty".

Divisors: 1 2 5 10 47 94 235 470 303049 606098 1515245 3030490 14243303 28486606 71216515 142433030