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8390254497 = 39972805167
BaseRepresentation
bin1111101000001100…
…10001111110100001
3210122201202002102120
413310012101332201
5114140401120442
63504320134453
7414626662242
oct76406217641
923581662376
108390254497
113616097429
121761a67429
13a39351941
14598452cc9
153418d64ec
hex1f4191fa1

8390254497 has 8 divisors (see below), whose sum is σ = 11198230656. Its totient is φ = 5587890672.

The previous prime is 8390254469. The next prime is 8390254549. The reversal of 8390254497 is 7944520938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8390254497 - 211 = 8390252449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8390254417) 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 in 7 ways as a sum of consecutive naturals, for example, 1399593 + ... + 1405574.

It is an arithmetic number, because the mean of its divisors is an integer number (1399778832).

Almost surely, 28390254497 is an apocalyptic number.

It is an amenable number.

8390254497 is a deficient number, since it is larger than the sum of its proper divisors (2807976159).

8390254497 is a wasteful number, since it uses less digits than its factorization.

8390254497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806167.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The square root of 8390254497 is about 91598.3323920256. The cubic root of 8390254497 is about 2032.0062749906.

The spelling of 8390254497 in words is "eight billion, three hundred ninety million, two hundred fifty-four thousand, four hundred ninety-seven".

Divisors: 1 3 997 2991 2805167 8415501 2796751499 8390254497