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2642554213 = 131889107609
BaseRepresentation
bin1001110110000010…
…0010110101100101
320211011102122220021
42131200202311211
520402443213323
61114115035141
7122325224455
oct23540426545
96734378807
102642554213
111136720102
12618b9bab1
13331622260
141b0d5bd65
15106ed905d
hex9d822d65

2642554213 has 8 divisors (see below), whose sum is σ = 2847360600. Its totient is φ = 2437966848.

The previous prime is 2642554199. The next prime is 2642554223. The reversal of 2642554213 is 3124552462.

It can be written as a sum of positive squares in 4 ways, for example, as 759167809 + 1883386404 = 27553^2 + 43398^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2642554213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642554223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29248 + ... + 78361.

It is an arithmetic number, because the mean of its divisors is an integer number (355920075).

Almost surely, 22642554213 is an apocalyptic number.

It is an amenable number.

2642554213 is a deficient number, since it is larger than the sum of its proper divisors (204806387).

2642554213 is a wasteful number, since it uses less digits than its factorization.

2642554213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109511.

The product of its digits is 57600, while the sum is 34.

The square root of 2642554213 is about 51405.7799571216. The cubic root of 2642554213 is about 1382.5302268995.

The spelling of 2642554213 in words is "two billion, six hundred forty-two million, five hundred fifty-four thousand, two hundred thirteen".

Divisors: 1 13 1889 24557 107609 1398917 203273401 2642554213