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142889931848 = 2320118881771
BaseRepresentation
bin1000010100010011100…
…1110101010001001000
3111122211020121121222002
42011010321311101020
54320114310304343
6145350455050132
713215642244406
oct2050471652110
9448736547862
10142889931848
1155665706774
1223839670948
1310622519141
146cb7382476
153ab47c28b8
hex2144e75448

142889931848 has 16 divisors (see below), whose sum is σ = 268051878960. Its totient is φ = 71409430800.

The previous prime is 142889931817. The next prime is 142889931883. The reversal of 142889931848 is 848139988241.

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, 4424798 + ... + 4456973.

It is an arithmetic number, because the mean of its divisors is an integer number (16753242435).

Almost surely, 2142889931848 is an apocalyptic number.

It is an amenable number.

142889931848 is a deficient number, since it is larger than the sum of its proper divisors (125161947112).

142889931848 is a wasteful number, since it uses less digits than its factorization.

142889931848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883788 (or 8883784 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 65.

The spelling of 142889931848 in words is "one hundred forty-two billion, eight hundred eighty-nine million, nine hundred thirty-one thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 2011 4022 8044 16088 8881771 17763542 35527084 71054168 17861241481 35722482962 71444965924 142889931848