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284636980213 = 898813630157
BaseRepresentation
bin1000010010001011010…
…11111010001111110101
31000012200211200202112021
410021011223322033311
514130414031331323
6334432130153141
726364366261235
oct4110553721765
91005624622467
10284636980213
11aa794178133
12471b84227b1
1320ac201b461
14dac2a21cc5
15760da8d05d
hex4245afa3f5

284636980213 has 8 divisors (see below), whose sum is σ = 288161942040. Its totient is φ = 281119280640.

The previous prime is 284636980193. The next prime is 284636980231. The reversal of 284636980213 is 312089636482.

It can be written as a sum of positive squares in 4 ways, for example, as 171557604 + 284465422609 = 13098^2 + 533353^2 .

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 284636980213 - 217 = 284636849141 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 (284636986213) 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, 1736670 + ... + 1893487.

It is an arithmetic number, because the mean of its divisors is an integer number (36020242755).

Almost surely, 2284636980213 is an apocalyptic number.

It is an amenable number.

284636980213 is a deficient number, since it is larger than the sum of its proper divisors (3524961827).

284636980213 is an equidigital number, since it uses as much as digits as its factorization.

284636980213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631127.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 284636980213 in words is "two hundred eighty-four billion, six hundred thirty-six million, nine hundred eighty thousand, two hundred thirteen".

Divisors: 1 89 881 78409 3630157 323083973 3198168317 284636980213