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65675489 = 115970499
BaseRepresentation
bin1111101010001…
…0000011100001
311120120122211112
43322202003201
5113303103424
610303353105
71425142505
oct372420341
9146518745
1065675489
1134087a70
1219bb2795
13107b6349
148a18305
155b7460e
hex3ea20e1

65675489 has 4 divisors (see below), whose sum is σ = 71646000. Its totient is φ = 59704980.

The previous prime is 65675483. The next prime is 65675509. The reversal of 65675489 is 98457656.

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.

It is a cyclic number.

It is not a de Polignac number, because 65675489 - 24 = 65675473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65675483) 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, 2985239 + ... + 2985260.

It is an arithmetic number, because the mean of its divisors is an integer number (17911500).

Almost surely, 265675489 is an apocalyptic number.

It is an amenable number.

65675489 is a deficient number, since it is larger than the sum of its proper divisors (5970511).

65675489 is a wasteful number, since it uses less digits than its factorization.

65675489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970510.

The product of its digits is 1814400, while the sum is 50.

The square root of 65675489 is about 8104.0415225985. The cubic root of 65675489 is about 403.4605767660.

The spelling of 65675489 in words is "sixty-five million, six hundred seventy-five thousand, four hundred eighty-nine".

Divisors: 1 11 5970499 65675489