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1420513 = 3145823
BaseRepresentation
bin101011010110011100001
32200011120121
411122303201
5330424023
650240241
715034303
oct5326341
92604517
101420513
11890286
12586081
133a9753
1428d973
151d0d5d
hex15ace1

1420513 has 4 divisors (see below), whose sum is σ = 1466368. Its totient is φ = 1374660.

The previous prime is 1420511. The next prime is 1420519. The reversal of 1420513 is 3150241.

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 a cyclic number.

It is not a de Polignac number, because 1420513 - 21 = 1420511 is a prime.

It is a Duffinian number.

1420513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1420511) 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, 22881 + ... + 22942.

It is an arithmetic number, because the mean of its divisors is an integer number (366592).

21420513 is an apocalyptic number.

It is an amenable number.

1420513 is a deficient number, since it is larger than the sum of its proper divisors (45855).

1420513 is an equidigital number, since it uses as much as digits as its factorization.

1420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45854.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1420513 is about 1191.8527593625. The cubic root of 1420513 is about 112.4126202147.

Adding to 1420513 its reverse (3150241), we get a palindrome (4570754).

The spelling of 1420513 in words is "one million, four hundred twenty thousand, five hundred thirteen".

Divisors: 1 31 45823 1420513