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104140105 = 521198711
BaseRepresentation
bin1100011010100…
…00110101001001
321020221212100221
412031100311021
5203124440410
614200030041
72403114316
oct615206511
9236855327
10104140105
115386a003
122aa62321
1318763084
14db8bd0d
1592214da
hex6350d49

104140105 has 8 divisors (see below), whose sum is σ = 125561664. Its totient is φ = 82916400.

The previous prime is 104140103. The next prime is 104140117. The reversal of 104140105 is 501041401.

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

It is not a de Polignac number, because 104140105 - 21 = 104140103 is a prime.

It is a super-2 number, since 2×1041401052 = 21690322938822050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104140103) 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, 48301 + ... + 50410.

It is an arithmetic number, because the mean of its divisors is an integer number (15695208).

Almost surely, 2104140105 is an apocalyptic number.

It is an amenable number.

104140105 is a deficient number, since it is larger than the sum of its proper divisors (21421559).

104140105 is an equidigital number, since it uses as much as digits as its factorization.

104140105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98927.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 104140105 is about 10204.9059280328. The cubic root of 104140105 is about 470.4780182642.

Adding to 104140105 its reverse (501041401), we get a palindrome (605181506).

The spelling of 104140105 in words is "one hundred four million, one hundred forty thousand, one hundred five".

Divisors: 1 5 211 1055 98711 493555 20828021 104140105