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142130312 = 2353335213
BaseRepresentation
bin10000111100010…
…11110010001000
3100220102222010122
420132023302020
5242341132222
622034202412
73344042042
oct1036136210
9326388118
10142130312
1173257675
123b723408
13235a4b9c
1414c3aa92
15c727a42
hex878bc88

142130312 has 16 divisors (see below), whose sum is σ = 271523340. Its totient is φ = 69724096.

The previous prime is 142130309. The next prime is 142130321. The reversal of 142130312 is 213031241.

It can be written as a sum of positive squares in 2 ways, for example, as 134699236 + 7431076 = 11606^2 + 2726^2 .

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, 167183 + ... + 168030.

Almost surely, 2142130312 is an apocalyptic number.

It is an amenable number.

142130312 is a deficient number, since it is larger than the sum of its proper divisors (129393028).

142130312 is a wasteful number, since it uses less digits than its factorization.

142130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335272 (or 335268 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142130312 is about 11921.8418040167. The cubic root of 142130312 is about 521.8698853145.

Adding to 142130312 its reverse (213031241), we get a palindrome (355161553).

The spelling of 142130312 in words is "one hundred forty-two million, one hundred thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 53 106 212 424 335213 670426 1340852 2681704 17766289 35532578 71065156 142130312