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380328305 = 57311672099
BaseRepresentation
bin10110101010110…
…101100101110001
3222111122200100112
4112222311211301
51234331001210
6101423431105
712265510610
oct2652654561
9874580315
10380328305
1118575a315
12a7455495
1360a44746
1438723877
15235c9d05
hex16ab5971

380328305 has 32 divisors (see below), whose sum is σ = 541900800. Its totient is φ = 250752960.

The previous prime is 380328293. The next prime is 380328317. The reversal of 380328305 is 503823083.

It is an interprime number because it is at equal distance from previous prime (380328293) and next prime (380328317).

It is not a de Polignac number, because 380328305 - 222 = 376134001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180146 + ... + 182244.

It is an arithmetic number, because the mean of its divisors is an integer number (16934400).

Almost surely, 2380328305 is an apocalyptic number.

380328305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

380328305 is a deficient number, since it is larger than the sum of its proper divisors (161572495).

380328305 is a wasteful number, since it uses less digits than its factorization.

380328305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 380328305 is about 19502.0077171557. The cubic root of 380328305 is about 724.5241776759.

The spelling of 380328305 in words is "three hundred eighty million, three hundred twenty-eight thousand, three hundred five".

Divisors: 1 5 7 31 35 155 167 217 835 1085 1169 2099 5177 5845 10495 14693 25885 36239 65069 73465 181195 325345 350533 455483 1752665 2277415 2453731 10866523 12268655 54332615 76065661 380328305