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2089086889 = 7129423759
BaseRepresentation
bin111110010000100…
…1110111110101001
312101120222121110111
41330201032332221
513234301240024
6543144214321
7102524642221
oct17441167651
95346877414
102089086889
1198226499a
124a376a3a1
13273a697b6
1415b649081
15c360da94
hex7c84efa9

2089086889 has 4 divisors (see below), whose sum is σ = 2118510720. Its totient is φ = 2059663060.

The previous prime is 2089086877. The next prime is 2089086907. The reversal of 2089086889 is 9886809802.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9886809802 = 24943404901.

It is a cyclic number.

It is not a de Polignac number, because 2089086889 - 27 = 2089086761 is a prime.

It is a super-3 number, since 3×20890868893 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2089086589) 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, 14711809 + ... + 14711950.

It is an arithmetic number, because the mean of its divisors is an integer number (529627680).

Almost surely, 22089086889 is an apocalyptic number.

It is an amenable number.

2089086889 is a deficient number, since it is larger than the sum of its proper divisors (29423831).

2089086889 is an equidigital number, since it uses as much as digits as its factorization.

2089086889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29423830.

The product of its (nonzero) digits is 3981312, while the sum is 58.

The square root of 2089086889 is about 45706.5300476857. The cubic root of 2089086889 is about 1278.3570410295.

The spelling of 2089086889 in words is "two billion, eighty-nine million, eighty-six thousand, eight hundred eighty-nine".

Divisors: 1 71 29423759 2089086889