Search a number
-
+
65041690 = 2578231129
BaseRepresentation
bin1111100000011…
…1010100011010
311112101110102111
43320013110122
5113122313230
610242022534
71416562630
oct370072432
9145343374
1065041690
113379486a
1219947a4a
1310623a0c
1488d1350
155a9b92a
hex3e0751a

65041690 has 32 divisors (see below), whose sum is σ = 134081280. Its totient is φ = 22253184.

The previous prime is 65041687. The next prime is 65041729. The reversal of 65041690 is 9614056.

65041690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×650416902 = 8460842876112200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 57046 + ... + 58174.

It is an arithmetic number, because the mean of its divisors is an integer number (4190040).

Almost surely, 265041690 is an apocalyptic number.

65041690 is an abundant number, since it is smaller than the sum of its proper divisors (69039590).

65041690 is a wasteful number, since it uses less digits than its factorization.

65041690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 65041690 is about 8064.8428378983. The cubic root of 65041690 is about 402.1585185422.

The spelling of 65041690 in words is "sixty-five million, forty-one thousand, six hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 823 1129 1646 2258 4115 5645 5761 7903 8230 11290 11522 15806 28805 39515 57610 79030 929167 1858334 4645835 6504169 9291670 13008338 32520845 65041690