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104131420 = 2255206571
BaseRepresentation
bin1100011010011…
…10101101011100
321020221102110021
412031032231130
5203124201140
614155521524
72403050101
oct615165534
9236842407
10104131420
1153863528
122aa592a4
131875c133
14db88aa8
15921db4a
hex634eb5c

104131420 has 12 divisors (see below), whose sum is σ = 218676024. Its totient is φ = 41652560.

The previous prime is 104131399. The next prime is 104131427. The reversal of 104131420 is 24131401.

It is a junction number, because it is equal to n+sod(n) for n = 104131394 and 104131403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104131427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2603266 + ... + 2603305.

It is an arithmetic number, because the mean of its divisors is an integer number (18223002).

Almost surely, 2104131420 is an apocalyptic number.

104131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104131420 is an abundant number, since it is smaller than the sum of its proper divisors (114544604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104131420 is a wasteful number, since it uses less digits than its factorization.

104131420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206580 (or 5206578 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 104131420 is about 10204.4803885352. The cubic root of 104131420 is about 470.4649390406.

Adding to 104131420 its reverse (24131401), we get a palindrome (128262821).

The spelling of 104131420 in words is "one hundred four million, one hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5206571 10413142 20826284 26032855 52065710 104131420