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142728470779 is a prime number
BaseRepresentation
bin1000010011101101000…
…1111010000011111011
3111122101222210120000111
42010323101322003323
54314301442031104
6145322450245151
713211641661416
oct2047321720373
9448358716014
10142728470779
1155592556674
12237b35867b7
13105c7c3664b
146c9db52b7d
153aa552c404
hex213b47a0fb

142728470779 has 2 divisors, whose sum is σ = 142728470780. Its totient is φ = 142728470778.

The previous prime is 142728470713. The next prime is 142728470813. The reversal of 142728470779 is 977074827241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142728470779 - 235 = 108368732411 is a prime.

It is not a weakly prime, because it can be changed into another prime (142728470279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71364235389 + 71364235390.

It is an arithmetic number, because the mean of its divisors is an integer number (71364235390).

Almost surely, 2142728470779 is an apocalyptic number.

142728470779 is a deficient number, since it is larger than the sum of its proper divisors (1).

142728470779 is an equidigital number, since it uses as much as digits as its factorization.

142728470779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11063808, while the sum is 58.

The spelling of 142728470779 in words is "one hundred forty-two billion, seven hundred twenty-eight million, four hundred seventy thousand, seven hundred seventy-nine".