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142241313 = 389532739
BaseRepresentation
bin10000111101001…
…10111000100001
3100220122121101210
420132212320201
5242403210223
622040420333
73345013464
oct1036467041
9326577353
10142241313
1173323005
123b7776a9
1323613576
1414c692db
15c74a893
hex87a6e21

142241313 has 8 divisors (see below), whose sum is σ = 191786400. Its totient is φ = 93761888.

The previous prime is 142241311. The next prime is 142241339. The reversal of 142241313 is 313142241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142241313 - 21 = 142241311 is a prime.

It is a super-2 number, since 2×1422413132 = 40465182247927938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142241313.

It is not an unprimeable number, because it can be changed into a prime (142241311) 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 7 ways as a sum of consecutive naturals, for example, 266103 + ... + 266636.

It is an arithmetic number, because the mean of its divisors is an integer number (23973300).

Almost surely, 2142241313 is an apocalyptic number.

It is an amenable number.

142241313 is a deficient number, since it is larger than the sum of its proper divisors (49545087).

142241313 is an equidigital number, since it uses as much as digits as its factorization.

142241313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532831.

The product of its digits is 576, while the sum is 21.

The square root of 142241313 is about 11926.4962583317. The cubic root of 142241313 is about 522.0057066947.

Adding to 142241313 its reverse (313142241), we get a palindrome (455383554).

The spelling of 142241313 in words is "one hundred forty-two million, two hundred forty-one thousand, three hundred thirteen".

Divisors: 1 3 89 267 532739 1598217 47413771 142241313