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65252885 = 517767681
BaseRepresentation
bin1111100011101…
…0111000010101
311112210012010112
43320322320111
5113201043020
610250332405
71421432435
oct370727025
9145705115
1065252885
1133919505
1219a2a105
1310698b99
1489482c5
155ade2c5
hex3e3ae15

65252885 has 8 divisors (see below), whose sum is σ = 82909656. Its totient is φ = 49131520.

The previous prime is 65252881. The next prime is 65252899. The reversal of 65252885 is 58825256.

It can be written as a sum of positive squares in 4 ways, for example, as 3928324 + 61324561 = 1982^2 + 7831^2 .

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

It is not a de Polignac number, because 65252885 - 22 = 65252881 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 (65252881) 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, 383756 + ... + 383925.

It is an arithmetic number, because the mean of its divisors is an integer number (10363707).

Almost surely, 265252885 is an apocalyptic number.

It is an amenable number.

65252885 is a deficient number, since it is larger than the sum of its proper divisors (17656771).

65252885 is a wasteful number, since it uses less digits than its factorization.

65252885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767703.

The product of its digits is 192000, while the sum is 41.

The square root of 65252885 is about 8077.9257857448. The cubic root of 65252885 is about 402.5933273806.

The spelling of 65252885 in words is "sixty-five million, two hundred fifty-two thousand, eight hundred eighty-five".

Divisors: 1 5 17 85 767681 3838405 13050577 65252885