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2065021 = 71571879
BaseRepresentation
bin111111000001001111101
310212220200021
413320021331
51012040041
6112132141
723360320
oct7701175
93786607
102065021
111190532
12837051
13573c0a
143ba7b7
152abcd1
hex1f827d

2065021 has 8 divisors (see below), whose sum is σ = 2376320. Its totient is φ = 1757808.

The previous prime is 2064983. The next prime is 2065031. The reversal of 2065021 is 1205602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2065021 - 213 = 2056829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2064986 and 2065004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065031) 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 7 ways as a sum of consecutive naturals, for example, 160 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (297040).

22065021 is an apocalyptic number.

It is an amenable number.

2065021 is a deficient number, since it is larger than the sum of its proper divisors (311299).

2065021 is a wasteful number, since it uses less digits than its factorization.

2065021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

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

The square root of 2065021 is about 1437.0180931359. The cubic root of 2065021 is about 127.3429258845.

The spelling of 2065021 in words is "two million, sixty-five thousand, twenty-one".

Divisors: 1 7 157 1099 1879 13153 295003 2065021