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2070979 = 13115809
BaseRepresentation
bin111111001100111000011
310220012211221
413321213003
51012232404
6112215511
723413561
oct7714703
93805757
102070979
111194a59
1283a597
13576841
143bca31
152ad954
hex1f99c3

2070979 has 4 divisors (see below), whose sum is σ = 2086920. Its totient is φ = 2055040.

The previous prime is 2070973. The next prime is 2070997. The reversal of 2070979 is 9790702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9790702 = 24895351.

It is a cyclic number.

It is not a de Polignac number, because 2070979 - 25 = 2070947 is a prime.

It is a Duffinian number.

2070979 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2070973) 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, 7774 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (521730).

22070979 is an apocalyptic number.

2070979 is a deficient number, since it is larger than the sum of its proper divisors (15941).

2070979 is a wasteful number, since it uses less digits than its factorization.

2070979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15940.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 2070979 is about 1439.0896427951. The cubic root of 2070979 is about 127.4652782550.

The spelling of 2070979 in words is "two million, seventy thousand, nine hundred seventy-nine".

Divisors: 1 131 15809 2070979