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142412402 = 2112588481
BaseRepresentation
bin10000111110100…
…00101001110010
3100220222022002102
420133100221302
5242424144102
622044220402
73346325336
oct1037205162
9326868072
10142412402
117342a600
123b83a702
13236733c2
1414cb17c6
15c781402
hex87d0a72

142412402 has 12 divisors (see below), whose sum is σ = 234804318. Its totient is φ = 64732800.

The previous prime is 142412363. The next prime is 142412407. The reversal of 142412402 is 204214241.

It can be written as a sum of positive squares in only one way, i.e., 133656721 + 8755681 = 11561^2 + 2959^2 .

It is not an unprimeable number, because it can be changed into a prime (142412407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293999 + ... + 294482.

Almost surely, 2142412402 is an apocalyptic number.

142412402 is a deficient number, since it is larger than the sum of its proper divisors (92391916).

142412402 is a wasteful number, since it uses less digits than its factorization.

142412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588505 (or 588494 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142412402 is about 11933.6667458078. Note that the first 3 decimals coincide. The cubic root of 142412402 is about 522.2149137317.

Adding to 142412402 its reverse (204214241), we get a palindrome (346626643).

The spelling of 142412402 in words is "one hundred forty-two million, four hundred twelve thousand, four hundred two".

Divisors: 1 2 11 22 121 242 588481 1176962 6473291 12946582 71206201 142412402