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2072019 = 3690673
BaseRepresentation
bin111111001110111010011
310220021021110
413321313103
51012301034
6112224403
723416605
oct7716723
93807243
102072019
111195814
1283b103
13577161
143bd175
152adde9
hex1f9dd3

2072019 has 4 divisors (see below), whose sum is σ = 2762696. Its totient is φ = 1381344.

The previous prime is 2072003. The next prime is 2072023. The reversal of 2072019 is 9102702.

It is a happy number.

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

It is not a de Polignac number, because 2072019 - 24 = 2072003 is a prime.

It is a super-2 number, since 2×20720192 = 8586525472722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2071986 and 2072004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072029) 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, 345334 + ... + 345339.

It is an arithmetic number, because the mean of its divisors is an integer number (690674).

22072019 is an apocalyptic number.

2072019 is a deficient number, since it is larger than the sum of its proper divisors (690677).

2072019 is an equidigital number, since it uses as much as digits as its factorization.

2072019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690676.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 2072019 is about 1439.4509369895. The cubic root of 2072019 is about 127.4866114354.

The spelling of 2072019 in words is "two million, seventy-two thousand, nineteen".

Divisors: 1 3 690673 2072019