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10806219 = 321200691
BaseRepresentation
bin101001001110…
…001111001011
3202100000100100
4221032033023
510231244334
61023340443
7160565004
oct51161713
922300310
1010806219
116110966
123751723
132314818
1416141ab
15e36c99
hexa4e3cb

10806219 has 6 divisors (see below), whose sum is σ = 15608996. Its totient is φ = 7204140.

The previous prime is 10806181. The next prime is 10806221. The reversal of 10806219 is 91260801.

It is not a de Polignac number, because 10806219 - 213 = 10798027 is a prime.

It is a super-2 number, since 2×108062192 = 233548738151922, 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 = 10806192 and 10806201.

It is not an unprimeable number, because it can be changed into a prime (10816219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 600337 + ... + 600354.

Almost surely, 210806219 is an apocalyptic number.

10806219 is a deficient number, since it is larger than the sum of its proper divisors (4802777).

10806219 is a wasteful number, since it uses less digits than its factorization.

10806219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200697 (or 1200694 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 10806219 is about 3287.2813995763. The cubic root of 10806219 is about 221.0843095400.

It can be divided in two parts, 10806 and 219, that added together give a square (11025 = 1052).

The spelling of 10806219 in words is "ten million, eight hundred six thousand, two hundred nineteen".

Divisors: 1 3 9 1200691 3602073 10806219