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142318079 = 332942751
BaseRepresentation
bin10000111101110…
…01100111111111
3100220210111200222
420132321213333
5242413134304
622042211555
73345453341
oct1036714777
9326714628
10142318079
1173375752
123b7b3bbb
132363c4a7
1414c89291
15c7634be
hex87b99ff

142318079 has 4 divisors (see below), whose sum is σ = 142364160. Its totient is φ = 142272000.

The previous prime is 142318049. The next prime is 142318081. The reversal of 142318079 is 970813241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142318079 - 216 = 142252543 is a prime.

It is a super-2 number, since 2×1423180792 = 40508871220500482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142318019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18047 + ... + 24704.

It is an arithmetic number, because the mean of its divisors is an integer number (35591040).

Almost surely, 2142318079 is an apocalyptic number.

142318079 is a deficient number, since it is larger than the sum of its proper divisors (46081).

142318079 is an equidigital number, since it uses as much as digits as its factorization.

142318079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46080.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 142318079 is about 11929.7141206317. The cubic root of 142318079 is about 522.0995966309.

The spelling of 142318079 in words is "one hundred forty-two million, three hundred eighteen thousand, seventy-nine".

Divisors: 1 3329 42751 142318079