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1830209303 = 13533976691
BaseRepresentation
bin110110100010110…
…1100011100010111
311201112212021011202
41231011230130113
512222013144203
6501335423115
763232344116
oct15505543427
94645767152
101830209303
1185a11837a
12430b24a9b
132322393b0
141350dbc7d
15aaa24388
hex6d16c717

1830209303 has 16 divisors (see below), whose sum is σ = 2013542496. Its totient is φ = 1653125760.

The previous prime is 1830209287. The next prime is 1830209321. The reversal of 1830209303 is 3039020381.

It is not a de Polignac number, because 1830209303 - 24 = 1830209287 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 (1830209503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270188 + ... + 276878.

It is an arithmetic number, because the mean of its divisors is an integer number (125846406).

Almost surely, 21830209303 is an apocalyptic number.

1830209303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1830209303 is a deficient number, since it is larger than the sum of its proper divisors (183333193).

1830209303 is a wasteful number, since it uses less digits than its factorization.

1830209303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7154.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1830209303 is about 42780.9455599102. The cubic root of 1830209303 is about 1223.2078312121.

Adding to 1830209303 its reverse (3039020381), we get a palindrome (4869229684).

The spelling of 1830209303 in words is "one billion, eight hundred thirty million, two hundred nine thousand, three hundred three".

Divisors: 1 13 53 397 689 5161 6691 21041 86983 273533 354623 2656327 4610099 34532251 140785331 1830209303