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65875985 = 571882171
BaseRepresentation
bin1111101101001…
…1000000010001
311120221211212022
43323103000101
5113331012420
610311541225
71426636160
oct373230021
9146854768
1065875985
113420466a
121a08a815
1310856696
148a6b3d7
155bb3c25
hex3ed3011

65875985 has 8 divisors (see below), whose sum is σ = 90344256. Its totient is φ = 45172080.

The previous prime is 65875963. The next prime is 65876009. The reversal of 65875985 is 58957856.

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

It is not a de Polignac number, because 65875985 - 28 = 65875729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941051 + ... + 941120.

It is an arithmetic number, because the mean of its divisors is an integer number (11293032).

Almost surely, 265875985 is an apocalyptic number.

It is an amenable number.

65875985 is a deficient number, since it is larger than the sum of its proper divisors (24468271).

65875985 is a wasteful number, since it uses less digits than its factorization.

65875985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882183.

The product of its digits is 3024000, while the sum is 53.

The square root of 65875985 is about 8116.4022201958. The cubic root of 65875985 is about 403.8707249844.

The spelling of 65875985 in words is "sixty-five million, eight hundred seventy-five thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 1882171 9410855 13175197 65875985