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7385680393 = 71381161323
BaseRepresentation
bin1101110000011100…
…01000101000001001
3201001201110102211021
412320032020220021
5110111213233033
63220512432441
7351011150620
oct67016105011
921051412737
107385680393
113150029aa3
121521548721
139091a27b0
14500c746b7
152d35eeb2d
hex1b8388a09

7385680393 has 8 divisors (see below), whose sum is σ = 9090068288. Its totient is φ = 5843615184.

The previous prime is 7385680321. The next prime is 7385680483. The reversal of 7385680393 is 3930865837.

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

It is a cyclic number.

It is not a de Polignac number, because 7385680393 - 213 = 7385672201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7385680393.

It is not an unprimeable number, because it can be changed into a prime (7385680303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40580571 + ... + 40580752.

It is an arithmetic number, because the mean of its divisors is an integer number (1136258536).

Almost surely, 27385680393 is an apocalyptic number.

It is an amenable number.

7385680393 is a deficient number, since it is larger than the sum of its proper divisors (1704387895).

7385680393 is a wasteful number, since it uses less digits than its factorization.

7385680393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81161343.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 7385680393 is about 85939.9813416317. The cubic root of 7385680393 is about 1947.4373870669.

The spelling of 7385680393 in words is "seven billion, three hundred eighty-five million, six hundred eighty thousand, three hundred ninety-three".

Divisors: 1 7 13 91 81161323 568129261 1055097199 7385680393