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485999289 = 32444712143
BaseRepresentation
bin11100111101111…
…100001010111001
31020212111022200200
4130331330022321
51443403434124
6120120352413
715020632356
oct3475741271
91225438620
10485999289
1122a374506
12116915709
13798c2559
144878d62d
152c9eebc9
hex1cf7c2b9

485999289 has 12 divisors (see below), whose sum is σ = 702214656. Its totient is φ = 323899992.

The previous prime is 485999257. The next prime is 485999291. The reversal of 485999289 is 982999584.

It is not a de Polignac number, because 485999289 - 25 = 485999257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (485999489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33952 + ... + 46094.

It is an arithmetic number, because the mean of its divisors is an integer number (58517888).

Almost surely, 2485999289 is an apocalyptic number.

It is an amenable number.

485999289 is a deficient number, since it is larger than the sum of its proper divisors (216215367).

485999289 is a wasteful number, since it uses less digits than its factorization.

485999289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16596 (or 16593 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 63.

The square root of 485999289 is about 22045.3915592352. The cubic root of 485999289 is about 786.2220348577. Note that the first 3 decimals are identical.

The spelling of 485999289 in words is "four hundred eighty-five million, nine hundred ninety-nine thousand, two hundred eighty-nine".

Divisors: 1 3 9 4447 12143 13341 36429 40023 109287 53999921 161999763 485999289