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10820419 = 23470453
BaseRepresentation
bin101001010001…
…101101000011
3202100201211021
4221101231003
510232223134
61023530311
7160654261
oct51215503
922321737
1010820419
1161205a5
123759997
13231b11c
141619431
15e3b0b4
hexa51b43

10820419 has 4 divisors (see below), whose sum is σ = 11290896. Its totient is φ = 10349944.

The previous prime is 10820413. The next prime is 10820437. The reversal of 10820419 is 91402801.

It is a happy number.

10820419 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91402801 = 713057543.

It is a cyclic number.

It is not a de Polignac number, because 10820419 - 211 = 10818371 is a prime.

It is a super-2 number, since 2×108204192 = 234162934671122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10820393 and 10820402.

It is not an unprimeable number, because it can be changed into a prime (10820413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235204 + ... + 235249.

It is an arithmetic number, because the mean of its divisors is an integer number (2822724).

Almost surely, 210820419 is an apocalyptic number.

10820419 is a deficient number, since it is larger than the sum of its proper divisors (470477).

10820419 is an equidigital number, since it uses as much as digits as its factorization.

10820419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470476.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 10820419 is about 3289.4405299382. The cubic root of 10820419 is about 221.1811063654.

The spelling of 10820419 in words is "ten million, eight hundred twenty thousand, four hundred nineteen".

Divisors: 1 23 470453 10820419