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9142492549 is a prime number
BaseRepresentation
bin10001000001110111…
…10101110110000101
3212121011012202001011
420200323311312011
5122210434230144
64111111202221
7442362622141
oct104073656605
925534182034
109142492549
113971775a73
121931976371
13b29151008
1462a308221
15387976a34
hex220ef5d85

9142492549 has 2 divisors, whose sum is σ = 9142492550. Its totient is φ = 9142492548.

The previous prime is 9142492537. The next prime is 9142492553. The reversal of 9142492549 is 9452942419.

9142492549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9029750625 + 112741924 = 95025^2 + 10618^2 .

It is an emirp because it is prime and its reverse (9452942419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9142492549 - 25 = 9142492517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9142492589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4571246274 + 4571246275.

It is an arithmetic number, because the mean of its divisors is an integer number (4571246275).

Almost surely, 29142492549 is an apocalyptic number.

It is an amenable number.

9142492549 is a deficient number, since it is larger than the sum of its proper divisors (1).

9142492549 is an equidigital number, since it uses as much as digits as its factorization.

9142492549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 9142492549 is about 95616.3822208308. The cubic root of 9142492549 is about 2091.0040389214.

The spelling of 9142492549 in words is "nine billion, one hundred forty-two million, four hundred ninety-two thousand, five hundred forty-nine".