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7051166149 is a prime number
BaseRepresentation
bin1101001000100100…
…00100000111000101
3200012102000100112211
412210102010013011
5103420044304044
63123402543421
7336506631466
oct64422040705
920172010484
107051166149
112a99221545
121449507b71
13884aac081
144ac678d6d
152b4074634
hex1a44841c5

7051166149 has 2 divisors, whose sum is σ = 7051166150. Its totient is φ = 7051166148.

The previous prime is 7051166123. The next prime is 7051166153. The reversal of 7051166149 is 9416611507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4687456225 + 2363709924 = 68465^2 + 48618^2 .

It is an emirp because it is prime and its reverse (9416611507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7051166149 - 213 = 7051157957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7051166119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3525583074 + 3525583075.

It is an arithmetic number, because the mean of its divisors is an integer number (3525583075).

Almost surely, 27051166149 is an apocalyptic number.

It is an amenable number.

7051166149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7051166149 is an equidigital number, since it uses as much as digits as its factorization.

7051166149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 7051166149 is about 83971.2221478287. Note that the first 3 decimals coincide. The cubic root of 7051166149 is about 1917.5806974952.

The spelling of 7051166149 in words is "seven billion, fifty-one million, one hundred sixty-six thousand, one hundred forty-nine".