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142804208587 is a prime number
BaseRepresentation
bin1000010011111111001…
…0110100101111001011
3111122121021022102202111
42010333302310233023
54314430334133322
6145334153443151
713213551513355
oct2047762645713
9448537272674
10142804208587
11556212865a7
1223814a104b7
131060a833a11
146ca9c2a0d5
153aabedd177
hex213fcb4bcb

142804208587 has 2 divisors, whose sum is σ = 142804208588. Its totient is φ = 142804208586.

The previous prime is 142804208489. The next prime is 142804208641. The reversal of 142804208587 is 785802408241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142804208587 - 235 = 108444470219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142804208587.

It is not a weakly prime, because it can be changed into another prime (142804203587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71402104293 + 71402104294.

It is an arithmetic number, because the mean of its divisors is an integer number (71402104294).

Almost surely, 2142804208587 is an apocalyptic number.

142804208587 is a deficient number, since it is larger than the sum of its proper divisors (1).

142804208587 is an equidigital number, since it uses as much as digits as its factorization.

142804208587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1146880, while the sum is 49.

The spelling of 142804208587 in words is "one hundred forty-two billion, eight hundred four million, two hundred eight thousand, five hundred eighty-seven".