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389044307 = 3712782793
BaseRepresentation
bin10111001100000…
…101100001010011
31000010001111110102
4113030011201103
51244043404212
6102334323015
712432551651
oct2714054123
91003044412
10389044307
1118a672823
12aa35946b
13627a6a42
1439951dd1
152424c5c2
hex17305853

389044307 has 8 divisors (see below), whose sum is σ = 402710016. Its totient is φ = 375544512.

The previous prime is 389044301. The next prime is 389044319. The reversal of 389044307 is 703440983.

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 389044307 - 24 = 389044291 is a prime.

It is a super-2 number, since 2×3890443072 = 302710945618220498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389044301) 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, 36698 + ... + 46095.

It is an arithmetic number, because the mean of its divisors is an integer number (50338752).

Almost surely, 2389044307 is an apocalyptic number.

389044307 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

389044307 is a deficient number, since it is larger than the sum of its proper divisors (13665709).

389044307 is a wasteful number, since it uses less digits than its factorization.

389044307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82957.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 389044307 is about 19724.2061183714. The cubic root of 389044307 is about 730.0170803535.

The spelling of 389044307 in words is "three hundred eighty-nine million, forty-four thousand, three hundred seven".

Divisors: 1 37 127 4699 82793 3063341 10514711 389044307