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65070620 = 2253253531
BaseRepresentation
bin1111100000111…
…0011000011100
311112102221002222
43320032120130
5113124224440
610242404512
71420043156
oct370163034
9145387088
1065070620
113380457a
1219960738
1310633c34
1488dbad6
155aa52b5
hex3e0e61c

65070620 has 12 divisors (see below), whose sum is σ = 136648344. Its totient is φ = 26028240.

The previous prime is 65070619. The next prime is 65070631. The reversal of 65070620 is 2607056.

65070620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 65070620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626746 + ... + 1626785.

It is an arithmetic number, because the mean of its divisors is an integer number (11387362).

Almost surely, 265070620 is an apocalyptic number.

It is an amenable number.

65070620 is an abundant number, since it is smaller than the sum of its proper divisors (71577724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65070620 is a wasteful number, since it uses less digits than its factorization.

65070620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253540 (or 3253538 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 65070620 is about 8066.6362258379. The cubic root of 65070620 is about 402.2181352865.

Adding to 65070620 its reverse (2607056), we get a palindrome (67677676).

The spelling of 65070620 in words is "sixty-five million, seventy thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 3253531 6507062 13014124 16267655 32535310 65070620