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2574706813 = 7252545037
BaseRepresentation
bin1001100101110110…
…1110100001111101
320122102202122202121
42121131232201331
520233111104223
61103252522541
7120542434600
oct23135564175
96572678677
102574706813
11110139a378
125ba320451
13320558473
141a5d3a337
1510108615d
hex9976e87d

2574706813 has 6 divisors (see below), whose sum is σ = 2995067166. Its totient is φ = 2206891512.

The previous prime is 2574706801. The next prime is 2574706817. The reversal of 2574706813 is 3186074752.

It can be written as a sum of positive squares in only one way, i.e., 2039154649 + 535552164 = 45157^2 + 23142^2 .

It is not a de Polignac number, because 2574706813 - 221 = 2572609661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2574706813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2574706817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26272470 + ... + 26272567.

It is an arithmetic number, because the mean of its divisors is an integer number (499177861).

Almost surely, 22574706813 is an apocalyptic number.

It is an amenable number.

2574706813 is a deficient number, since it is larger than the sum of its proper divisors (420360353).

2574706813 is an equidigital number, since it uses as much as digits as its factorization.

2574706813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52545051 (or 52545044 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 2574706813 is about 50741.5688858750. The cubic root of 2574706813 is about 1370.5953710783.

The spelling of 2574706813 in words is "two billion, five hundred seventy-four million, seven hundred six thousand, eight hundred thirteen".

Divisors: 1 7 49 52545037 367815259 2574706813