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7148818379 is a prime number
BaseRepresentation
bin1101010100001101…
…00100111111001011
3200110012202121020002
412222012210333023
5104120044142004
63141211553215
7342103645043
oct65206447713
920405677202
107148818379
11303935a06a
12147615b80b
1389c0b0061
144bb618723
152bc91361e
hex1aa1a4fcb

7148818379 has 2 divisors, whose sum is σ = 7148818380. Its totient is φ = 7148818378.

The previous prime is 7148818373. The next prime is 7148818421. The reversal of 7148818379 is 9738188417.

It is a weak prime.

It is an emirp because it is prime and its reverse (9738188417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7148818379 - 28 = 7148818123 is a prime.

It is a super-2 number, since 2×71488183792 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7148818373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574409189 + 3574409190.

It is an arithmetic number, because the mean of its divisors is an integer number (3574409190).

Almost surely, 27148818379 is an apocalyptic number.

7148818379 is a deficient number, since it is larger than the sum of its proper divisors (1).

7148818379 is an equidigital number, since it uses as much as digits as its factorization.

7148818379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 56.

The square root of 7148818379 is about 84550.6852662946. The cubic root of 7148818379 is about 1926.3923926443.

The spelling of 7148818379 in words is "seven billion, one hundred forty-eight million, eight hundred eighteen thousand, three hundred seventy-nine".