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142130415 = 35713110333
BaseRepresentation
bin10000111100010…
…11110011101111
3100220102222021110
420132023303233
5242341133130
622034203103
73344042250
oct1036136357
9326388243
10142130415
1173257759
123b723493
13235a4c4b
1414c3ab27
15c727ab0
hex878bcef

142130415 has 32 divisors (see below), whose sum is σ = 261904896. Its totient is φ = 64471680.

The previous prime is 142130413. The next prime is 142130423. The reversal of 142130415 is 514031241.

It is not a de Polignac number, because 142130415 - 21 = 142130413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 142130391 and 142130400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142130413) 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 31 ways as a sum of consecutive naturals, for example, 8589 + ... + 18921.

It is an arithmetic number, because the mean of its divisors is an integer number (8184528).

Almost surely, 2142130415 is an apocalyptic number.

142130415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142130415 is a deficient number, since it is larger than the sum of its proper divisors (119774481).

142130415 is a wasteful number, since it uses less digits than its factorization.

142130415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 142130415 is about 11921.8461238182. The cubic root of 142130415 is about 521.8700113786.

Adding to 142130415 its reverse (514031241), we get a palindrome (656161656).

The spelling of 142130415 in words is "one hundred forty-two million, one hundred thirty thousand, four hundred fifteen".

Divisors: 1 3 5 7 15 21 35 105 131 393 655 917 1965 2751 4585 10333 13755 30999 51665 72331 154995 216993 361655 1084965 1353623 4060869 6768115 9475361 20304345 28426083 47376805 142130415