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104131243 = 792116247
BaseRepresentation
bin1100011010011…
…10101010101011
321020221102012201
412031032222223
5203124144433
614155521031
72403046426
oct615165253
9236842181
10104131243
1153863387
122aa59177
131875c028
14db889bd
15921da7d
hex634eaab

104131243 has 8 divisors (see below), whose sum is σ = 105966080. Its totient is φ = 102309480.

The previous prime is 104131241. The next prime is 104131277. The reversal of 104131243 is 342131401.

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 104131243 - 21 = 104131241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104131243.

It is not an unprimeable number, because it can be changed into a prime (104131241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13546 + ... + 19792.

It is an arithmetic number, because the mean of its divisors is an integer number (13245760).

Almost surely, 2104131243 is an apocalyptic number.

104131243 is a deficient number, since it is larger than the sum of its proper divisors (1834837).

104131243 is an equidigital number, since it uses as much as digits as its factorization.

104131243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6537.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 104131243 is about 10204.4717158704. The cubic root of 104131243 is about 470.4646724789.

Adding to 104131243 its reverse (342131401), we get a palindrome (446262644).

The spelling of 104131243 in words is "one hundred four million, one hundred thirty-one thousand, two hundred forty-three".

Divisors: 1 79 211 6247 16669 493513 1318117 104131243