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389848813 = 596798621
BaseRepresentation
bin10111001111001…
…001111011101101
31000011120101000221
4113033021323231
51244300130223
6102403451341
712442442314
oct2717117355
91004511027
10389848813
11190072202
12aa686b51
13629c8c93
1439ac127b
152435ab5d
hex173c9eed

389848813 has 8 divisors (see below), whose sum is σ = 402377760. Its totient is φ = 377517360.

The previous prime is 389848807. The next prime is 389848817. The reversal of 389848813 is 318848983.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-389848813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389848817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45358 + ... + 53263.

It is an arithmetic number, because the mean of its divisors is an integer number (50297220).

Almost surely, 2389848813 is an apocalyptic number.

It is an amenable number.

389848813 is a deficient number, since it is larger than the sum of its proper divisors (12528947).

389848813 is an equidigital number, since it uses as much as digits as its factorization.

389848813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98747.

The product of its digits is 1327104, while the sum is 52.

The square root of 389848813 is about 19744.5894614196. The cubic root of 389848813 is about 730.5199354666.

The spelling of 389848813 in words is "three hundred eighty-nine million, eight hundred forty-eight thousand, eight hundred thirteen".

Divisors: 1 59 67 3953 98621 5818639 6607607 389848813