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1683461609 = 23203935897
BaseRepresentation
bin110010001010111…
…1001010111101001
311100022201201011222
41210111321113221
511421431232414
6435014231425
756501121224
oct14425712751
94308651158
101683461609
117942a7695
123ab955575
1320aa0893b
1411d81c5bb
159cbd868e
hex645795e9

1683461609 has 8 divisors (see below), whose sum is σ = 1757566080. Its totient is φ = 1609433056.

The previous prime is 1683461551. The next prime is 1683461621. The reversal of 1683461609 is 9061643861.

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-1683461609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1683461609.

It is not an unprimeable number, because it can be changed into a prime (1683461699) 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 7 ways as a sum of consecutive naturals, for example, 28949 + ... + 64845.

It is an arithmetic number, because the mean of its divisors is an integer number (219695760).

Almost surely, 21683461609 is an apocalyptic number.

It is an amenable number.

1683461609 is a deficient number, since it is larger than the sum of its proper divisors (74104471).

1683461609 is a wasteful number, since it uses less digits than its factorization.

1683461609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37959.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1683461609 is about 41030.0086400186. The cubic root of 1683461609 is about 1189.6003198402.

The spelling of 1683461609 in words is "one billion, six hundred eighty-three million, four hundred sixty-one thousand, six hundred nine".

Divisors: 1 23 2039 35897 46897 825631 73193983 1683461609