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3420013 = 31110323
BaseRepresentation
bin1101000010111101101101
320102202101011
431002331231
51333420023
6201145221
741032612
oct15027555
96382334
103420013
111a26563
12118b211
1392989c
14650509
1547850d
hex342f6d

3420013 has 4 divisors (see below), whose sum is σ = 3530368. Its totient is φ = 3309660.

The previous prime is 3419963. The next prime is 3420023. The reversal of 3420013 is 3100243.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3100243 = 14920807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3420013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3419975 and 3420002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420023) 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 3 ways as a sum of consecutive naturals, for example, 55131 + ... + 55192.

It is an arithmetic number, because the mean of its divisors is an integer number (882592).

Almost surely, 23420013 is an apocalyptic number.

It is an amenable number.

3420013 is a deficient number, since it is larger than the sum of its proper divisors (110355).

3420013 is a wasteful number, since it uses less digits than its factorization.

3420013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110354.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3420013 is about 1849.3277156848. The cubic root of 3420013 is about 150.6639163576.

Adding to 3420013 its reverse (3100243), we get a palindrome (6520256).

The spelling of 3420013 in words is "three million, four hundred twenty thousand, thirteen".

Divisors: 1 31 110323 3420013