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142130043 = 32111435657
BaseRepresentation
bin10000111100010…
…11101101111011
3100220102221202200
420132023231323
5242341130133
622034201243
73344041206
oct1036135573
9326387680
10142130043
1173257450
123b723223
13235a4a23
1414c3a93d
15c727913
hex878bb7b

142130043 has 12 divisors (see below), whose sum is σ = 223962648. Its totient is φ = 86139360.

The previous prime is 142130033. The next prime is 142130077. The reversal of 142130043 is 340031241.

It is not a de Polignac number, because 142130043 - 25 = 142130011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142129998 and 142130025.

It is not an unprimeable number, because it can be changed into a prime (142130033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717730 + ... + 717927.

It is an arithmetic number, because the mean of its divisors is an integer number (18663554).

Almost surely, 2142130043 is an apocalyptic number.

142130043 is a deficient number, since it is larger than the sum of its proper divisors (81832605).

142130043 is a wasteful number, since it uses less digits than its factorization.

142130043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435674 (or 1435671 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142130043 is about 11921.8305221975. The cubic root of 142130043 is about 521.8695560788.

Adding to 142130043 its reverse (340031241), we get a palindrome (482161284).

The spelling of 142130043 in words is "one hundred forty-two million, one hundred thirty thousand, forty-three".

Divisors: 1 3 9 11 33 99 1435657 4306971 12920913 15792227 47376681 142130043