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104112140420 = 2255205607021
BaseRepresentation
bin110000011110110010…
…0010011000010000100
3100221201202100201102202
41200331210103002010
53201210201443140
6115454540254032
710343665410041
oct1407544230204
9327652321382
10104112140420
1140176653062
1218216b41318
139a82735822
1450792461c8
152a95261915
hex183d913084

104112140420 has 12 divisors (see below), whose sum is σ = 218635494924. Its totient is φ = 41644856160.

The previous prime is 104112140413. The next prime is 104112140449. The reversal of 104112140420 is 24041211401.

It can be written as a sum of positive squares in 2 ways, for example, as 42560515204 + 61551625216 = 206302^2 + 248096^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5205607021 = 104112140420 / (1 + 0 + 4 + 1 + 1 + 2 + 1 + 4 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 104112140392 and 104112140401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2602803491 + ... + 2602803530.

It is an arithmetic number, because the mean of its divisors is an integer number (18219624577).

Almost surely, 2104112140420 is an apocalyptic number.

104112140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104112140420 is an abundant number, since it is smaller than the sum of its proper divisors (114523354504).

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

104112140420 is a wasteful number, since it uses less digits than its factorization.

104112140420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205607030 (or 5205607028 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 104112140420 its reverse (24041211401), we get a palindrome (128153351821).

The spelling of 104112140420 in words is "one hundred four billion, one hundred twelve million, one hundred forty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5205607021 10411214042 20822428084 26028035105 52056070210 104112140420