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2861083997 = 3119199627
BaseRepresentation
bin1010101010001000…
…1010110101011101
321101101122010101222
42222202022311131
521324414141442
61151522543125
7130620545522
oct25242126535
97341563358
102861083997
111239009832
1267a207aa5
13367996715
141d1da5149
1511b2a38d2
hexaa88ad5d

2861083997 has 4 divisors (see below), whose sum is σ = 2870283936. Its totient is φ = 2851884060.

The previous prime is 2861083933. The next prime is 2861083999. The reversal of 2861083997 is 7993801682.

2861083997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2861083997 - 26 = 2861083933 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 (2861083999) 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, 4599503 + ... + 4600124.

It is an arithmetic number, because the mean of its divisors is an integer number (717570984).

Almost surely, 22861083997 is an apocalyptic number.

It is an amenable number.

2861083997 is a deficient number, since it is larger than the sum of its proper divisors (9199939).

2861083997 is an equidigital number, since it uses as much as digits as its factorization.

2861083997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9199938.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 2861083997 is about 53489.1016656664. The cubic root of 2861083997 is about 1419.6355602809.

The spelling of 2861083997 in words is "two billion, eight hundred sixty-one million, eighty-three thousand, nine hundred ninety-seven".

Divisors: 1 311 9199627 2861083997