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2081101471 = 3088167391
BaseRepresentation
bin111110000001011…
…0001011010011111
312101000221220112021
41330002301122133
513230230221341
6542301121011
7102400033141
oct17402613237
95330856467
102081101471
11978800379
124a0b59167
13272201bb7
1415a56ac91
15c2a829d1
hex7c0b169f

2081101471 has 4 divisors (see below), whose sum is σ = 2081199744. Its totient is φ = 2081003200.

The previous prime is 2081101457. The next prime is 2081101489. The reversal of 2081101471 is 1741011802.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2081101471 is a prime.

It is a super-3 number, since 3×20811014713 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081101441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815 + ... + 64576.

It is an arithmetic number, because the mean of its divisors is an integer number (520299936).

Almost surely, 22081101471 is an apocalyptic number.

2081101471 is a deficient number, since it is larger than the sum of its proper divisors (98273).

2081101471 is an equidigital number, since it uses as much as digits as its factorization.

2081101471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98272.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 2081101471 is about 45619.0910803799. The cubic root of 2081101471 is about 1276.7261451185.

The spelling of 2081101471 in words is "two billion, eighty-one million, one hundred one thousand, four hundred seventy-one".

Divisors: 1 30881 67391 2081101471