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2089928447 = 19990711579
BaseRepresentation
bin111110010010001…
…1100011011111111
312101122120100212022
41330210130123333
513240010202242
6543214230355
7102535045565
oct17444343377
95348510768
102089928447
1198278a1a2
124a3ab53bb
13273ca2869
1415b7c7a35
15c37280d2
hex7c91c6ff

2089928447 has 8 divisors (see below), whose sum is σ = 2102928000. Its totient is φ = 2076954264.

The previous prime is 2089928429. The next prime is 2089928497. The reversal of 2089928447 is 7448299802.

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 not a de Polignac number, because 2089928447 - 216 = 2089862911 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 (2089928497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174704 + ... + 186282.

It is an arithmetic number, because the mean of its divisors is an integer number (262866000).

Almost surely, 22089928447 is an apocalyptic number.

2089928447 is a deficient number, since it is larger than the sum of its proper divisors (12999553).

2089928447 is a wasteful number, since it uses less digits than its factorization.

2089928447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12685.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 2089928447 is about 45715.7352232248. The cubic root of 2089928447 is about 1278.5286737772.

The spelling of 2089928447 in words is "two billion, eighty-nine million, nine hundred twenty-eight thousand, four hundred forty-seven".

Divisors: 1 199 907 11579 180493 2304221 10502153 2089928447