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1420219 = 1638713
BaseRepresentation
bin101011010101110111011
32200011011201
411122232323
5330421334
650235031
715033403
oct5325673
92604151
101420219
11890039
12585a77
133a9588
1428d803
151d0c14
hex15abbb

1420219 has 4 divisors (see below), whose sum is σ = 1429096. Its totient is φ = 1411344.

The previous prime is 1420207. The next prime is 1420253. The reversal of 1420219 is 9120241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420219 - 27 = 1420091 is a prime.

It is a super-2 number, since 2×14202192 = 4034044015922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1420196 and 1420205.

It is not an unprimeable number, because it can be changed into a prime (1420259) 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, 4194 + ... + 4519.

It is an arithmetic number, because the mean of its divisors is an integer number (357274).

21420219 is an apocalyptic number.

1420219 is a deficient number, since it is larger than the sum of its proper divisors (8877).

1420219 is an equidigital number, since it uses as much as digits as its factorization.

1420219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8876.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1420219 is about 1191.7294155973. The cubic root of 1420219 is about 112.4048644273.

The spelling of 1420219 in words is "one million, four hundred twenty thousand, two hundred nineteen".

Divisors: 1 163 8713 1420219