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2089912571 = 18211114761
BaseRepresentation
bin111110010010001…
…1000100011111011
312101122112120002022
41330210120203323
513240004200241
6543214025055
7102534651365
oct17444304373
95348476068
102089912571
1198277927a
124a3aa818b
13273c98576
1415b7c1d35
15c372354b
hex7c9188fb

2089912571 has 4 divisors (see below), whose sum is σ = 2090045544. Its totient is φ = 2089779600.

The previous prime is 2089912567. The next prime is 2089912603. The reversal of 2089912571 is 1752199802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2089912571 - 22 = 2089912567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2089912511) 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, 39170 + ... + 75591.

It is an arithmetic number, because the mean of its divisors is an integer number (522511386).

Almost surely, 22089912571 is an apocalyptic number.

2089912571 is a deficient number, since it is larger than the sum of its proper divisors (132973).

2089912571 is a wasteful number, since it uses less digits than its factorization.

2089912571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132972.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 2089912571 is about 45715.5615846508. The cubic root of 2089912571 is about 1278.5254363502.

The spelling of 2089912571 in words is "two billion, eighty-nine million, nine hundred twelve thousand, five hundred seventy-one".

Divisors: 1 18211 114761 2089912571