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380830 = 2538083
BaseRepresentation
bin1011100111110011110
3201100101211
41130332132
544141310
612055034
73144202
oct1347636
9640354
10380830
1124013a
1216447a
13104458
149cb02
1577c8a
hex5cf9e

380830 has 8 divisors (see below), whose sum is σ = 685512. Its totient is φ = 152328.

The previous prime is 380819. The next prime is 380837. The reversal of 380830 is 38083.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380837) 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 3 ways as a sum of consecutive naturals, for example, 19032 + ... + 19051.

It is an arithmetic number, because the mean of its divisors is an integer number (85689).

2380830 is an apocalyptic number.

380830 is a deficient number, since it is larger than the sum of its proper divisors (304682).

380830 is a wasteful number, since it uses less digits than its factorization.

380830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38090.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 380830 is about 617.1142519826. The cubic root of 380830 is about 72.4842613478.

The spelling of 380830 in words is "three hundred eighty thousand, eight hundred thirty".

Divisors: 1 2 5 10 38083 76166 190415 380830