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8145479 is a prime number
BaseRepresentation
bin11111000100101001000111
3120022211111102
4133010221013
54041123404
6450330315
7126143516
oct37045107
916284442
108145479
114663901
12288999b
1318c2714
14112067d
15aad71e
hex7c4a47

8145479 has 2 divisors, whose sum is σ = 8145480. Its totient is φ = 8145478.

The previous prime is 8145463. The next prime is 8145541. The reversal of 8145479 is 9745418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8145479 - 24 = 8145463 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8145419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4072739 + 4072740.

It is an arithmetic number, because the mean of its divisors is an integer number (4072740).

Almost surely, 28145479 is an apocalyptic number.

8145479 is a deficient number, since it is larger than the sum of its proper divisors (1).

8145479 is an equidigital number, since it uses as much as digits as its factorization.

8145479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 8145479 is about 2854.0285562692. The cubic root of 8145479 is about 201.2050496936.

The spelling of 8145479 in words is "eight million, one hundred forty-five thousand, four hundred seventy-nine".