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7958007149 is a prime number
BaseRepresentation
bin1110110100101010…
…11000110101101101
3202112121101122112112
413122111120311231
5112244222212044
63353355413405
7401130642011
oct73225306555
922477348475
107958007149
1134140a6614
121661154265
1399a92c491
14556c96541
153189a309e
hex1da558d6d

7958007149 has 2 divisors, whose sum is σ = 7958007150. Its totient is φ = 7958007148.

The previous prime is 7958007137. The next prime is 7958007151. The reversal of 7958007149 is 9417008597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4791131524 + 3166875625 = 69218^2 + 56275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7958007149 is a prime.

Together with 7958007151, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7958007097 and 7958007106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7958006149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3979003574 + 3979003575.

It is an arithmetic number, because the mean of its divisors is an integer number (3979003575).

Almost surely, 27958007149 is an apocalyptic number.

It is an amenable number.

7958007149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7958007149 is an equidigital number, since it uses as much as digits as its factorization.

7958007149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 7958007149 is about 89207.6630620935. The cubic root of 7958007149 is about 1996.4944549168.

The spelling of 7958007149 in words is "seven billion, nine hundred fifty-eight million, seven thousand, one hundred forty-nine".