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2857796245 = 51304943801
BaseRepresentation
bin1010101001010110…
…1000001010010101
321101011110002110101
42222111220022111
521323043434440
61151324254101
7130550603323
oct25225501225
97334402411
102857796245
111237173687
126790a1331
133670b50c5
141d178ad13
1511ad5469a
hexaa568295

2857796245 has 8 divisors (see below), whose sum is σ = 3429696600. Its totient is φ = 2286009600.

The previous prime is 2857796243. The next prime is 2857796257. The reversal of 2857796245 is 5426977582.

It can be written as a sum of positive squares in 4 ways, for example, as 388799524 + 2468996721 = 19718^2 + 49689^2 .

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

It is not a de Polignac number, because 2857796245 - 21 = 2857796243 is a prime.

It is a super-2 number, since 2×28577962452 = 16333998755872200050, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857796243) 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, 43345 + ... + 87145.

It is an arithmetic number, because the mean of its divisors is an integer number (428712075).

Almost surely, 22857796245 is an apocalyptic number.

It is an amenable number.

2857796245 is a deficient number, since it is larger than the sum of its proper divisors (571900355).

2857796245 is a wasteful number, since it uses less digits than its factorization.

2857796245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56855.

The product of its digits is 8467200, while the sum is 55.

The square root of 2857796245 is about 53458.3599168549. The cubic root of 2857796245 is about 1419.0915708213.

The spelling of 2857796245 in words is "two billion, eight hundred fifty-seven million, seven hundred ninety-six thousand, two hundred forty-five".

Divisors: 1 5 13049 43801 65245 219005 571559249 2857796245