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1420193 = 1974747
BaseRepresentation
bin101011010101110100001
32200011010202
411122232201
5330421233
650234545
715033335
oct5325641
92604122
101420193
11890015
12585a55
133a9568
1428d7c5
151d0be8
hex15aba1

1420193 has 4 divisors (see below), whose sum is σ = 1494960. Its totient is φ = 1345428.

The previous prime is 1420169. The next prime is 1420201. The reversal of 1420193 is 3910241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1420193 - 212 = 1416097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420123) 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, 37355 + ... + 37392.

It is an arithmetic number, because the mean of its divisors is an integer number (373740).

21420193 is an apocalyptic number.

It is an amenable number.

1420193 is a deficient number, since it is larger than the sum of its proper divisors (74767).

1420193 is an equidigital number, since it uses as much as digits as its factorization.

1420193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74766.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1420193 is about 1191.7185070309. The cubic root of 1420193 is about 112.4041784898.

The spelling of 1420193 in words is "one million, four hundred twenty thousand, one hundred ninety-three".

Divisors: 1 19 74747 1420193