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104831291 = 434751871
BaseRepresentation
bin1100011111110…
…01100100111011
321022020222111102
412033321210323
5203314100131
614222522015
72412023405
oct617714473
9238228442
10104831291
11541a1334
122b13630b
1318945866
14dccbb75
15930b1cb
hex63f993b

104831291 has 8 divisors (see below), whose sum is σ = 109553664. Its totient is φ = 100212840.

The previous prime is 104831281. The next prime is 104831327. The reversal of 104831291 is 192138401.

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 104831291 - 210 = 104830267 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (104831281) 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 7 ways as a sum of consecutive naturals, for example, 23915 + ... + 27956.

It is an arithmetic number, because the mean of its divisors is an integer number (13694208).

Almost surely, 2104831291 is an apocalyptic number.

104831291 is a deficient number, since it is larger than the sum of its proper divisors (4722373).

104831291 is an equidigital number, since it uses as much as digits as its factorization.

104831291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51961.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 104831291 is about 10238.7153002708. The cubic root of 104831291 is about 471.5165903823.

Adding to 104831291 its reverse (192138401), we get a palindrome (296969692).

The spelling of 104831291 in words is "one hundred four million, eight hundred thirty-one thousand, two hundred ninety-one".

Divisors: 1 43 47 2021 51871 2230453 2437937 104831291