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1708806013 = 8779194647
BaseRepresentation
bin110010111011010…
…0100111101111101
311102002102100011121
41211312210331331
511444423243023
6441321350541
760226416505
oct14566447575
94362370147
101708806013
117a7638282
123b8338451
13213040825
14122d38a05
15a0042d5d
hex65da4f7d

1708806013 has 4 divisors (see below), whose sum is σ = 1709009440. Its totient is φ = 1708602588.

The previous prime is 1708805941. The next prime is 1708806023. The reversal of 1708806013 is 3106088071.

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: 3106088071 = 17182711063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1708806013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1708806013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1708806023) 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, 88545 + ... + 106102.

It is an arithmetic number, because the mean of its divisors is an integer number (427252360).

Almost surely, 21708806013 is an apocalyptic number.

It is an amenable number.

1708806013 is a deficient number, since it is larger than the sum of its proper divisors (203427).

1708806013 is an equidigital number, since it uses as much as digits as its factorization.

1708806013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203426.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1708806013 is about 41337.7069151156. The cubic root of 1708806013 is about 1195.5403945841.

The spelling of 1708806013 in words is "one billion, seven hundred eight million, eight hundred six thousand, thirteen".

Divisors: 1 8779 194647 1708806013