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142108154847 = 32128912249647
BaseRepresentation
bin1000010001011001001…
…1100101101111011111
3111120210202120020112100
42010112103211233133
54312014141423342
6145141130540143
713160400246231
oct2042623455737
9446722506470
10142108154847
11552a439207a
122365b897653
13105295768b9
146c415dc251
153a6ad49e4c
hex21164e5bdf

142108154847 has 12 divisors (see below), whose sum is σ = 205426596960. Its totient is φ = 94665264288.

The previous prime is 142108154843. The next prime is 142108154911. The reversal of 142108154847 is 748451801241.

142108154847 is a `hidden beast` number, since 1 + 4 + 21 + 0 + 81 + 548 + 4 + 7 = 666.

It is not a de Polignac number, because 142108154847 - 22 = 142108154843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142108154843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6113223 + ... + 6136424.

It is an arithmetic number, because the mean of its divisors is an integer number (17118883080).

Almost surely, 2142108154847 is an apocalyptic number.

142108154847 is a deficient number, since it is larger than the sum of its proper divisors (63318442113).

142108154847 is a wasteful number, since it uses less digits than its factorization.

142108154847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12250942 (or 12250939 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 142108154847 in words is "one hundred forty-two billion, one hundred eight million, one hundred fifty-four thousand, eight hundred forty-seven".

Divisors: 1 3 9 1289 3867 11601 12249647 36748941 110246823 15789794983 47369384949 142108154847