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2290689989 = 71917223233
BaseRepresentation
bin1000100010001001…
…0010011111000101
312220122100002220222
42020202102133011
514142404034424
61015145234125
7110523354320
oct21042223705
95818302828
102290689989
11a76042325
1253b192945
132a6765683
1417a3277b7
15d6182e5e
hex888927c5

2290689989 has 8 divisors (see below), whose sum is σ = 2755717440. Its totient is φ = 1860109056.

The previous prime is 2290689979. The next prime is 2290690021. The reversal of 2290689989 is 9899860922.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2290689989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290689949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8611484 + ... + 8611749.

It is an arithmetic number, because the mean of its divisors is an integer number (344464680).

Almost surely, 22290689989 is an apocalyptic number.

It is an amenable number.

2290689989 is a deficient number, since it is larger than the sum of its proper divisors (465027451).

2290689989 is a wasteful number, since it uses less digits than its factorization.

2290689989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17223259.

The product of its (nonzero) digits is 10077696, while the sum is 62.

The square root of 2290689989 is about 47861.1532351656. The cubic root of 2290689989 is about 1318.2226593996. Note that the first 3 decimals are identical.

The spelling of 2290689989 in words is "two billion, two hundred ninety million, six hundred eighty-nine thousand, nine hundred eighty-nine".

Divisors: 1 7 19 133 17223233 120562631 327241427 2290689989