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142858585858 = 2389183622861
BaseRepresentation
bin1000010100001100001…
…0010000011100000010
3111122202001122002100111
42011003002100130002
54320033244221413
6145343415141534
713215111641602
oct2050302203402
9448661562314
10142858585858
1155649a46a9a
122382b0748aa
1310618b92611
146cb3142c02
153ab1b7ed3d
hex2143090702

142858585858 has 8 divisors (see below), whose sum is σ = 214838748540. Its totient is φ = 71245669680.

The previous prime is 142858585829. The next prime is 142858585861. The reversal of 142858585858 is 858585858241.

It can be written as a sum of positive squares in 2 ways, for example, as 132425393409 + 10433192449 = 363903^2 + 102143^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 142858585793 and 142858585802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91810653 + ... + 91812208.

Almost surely, 2142858585858 is an apocalyptic number.

142858585858 is a deficient number, since it is larger than the sum of its proper divisors (71980162682).

142858585858 is a wasteful number, since it uses less digits than its factorization.

142858585858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183623252.

The product of its digits is 163840000, while the sum is 67.

The spelling of 142858585858 in words is "one hundred forty-two billion, eight hundred fifty-eight million, five hundred eighty-five thousand, eight hundred fifty-eight".

Divisors: 1 2 389 778 183622861 367245722 71429292929 142858585858