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65081842 = 2741113383
BaseRepresentation
bin1111100001000…
…1000111110010
311112110111111121
43320101013302
5113130104332
610242532454
71420120660
oct370210762
9145414447
1065081842
1133811a51
121996712a
1310639087
148901c30
155aa8797
hex3e111f2

65081842 has 16 divisors (see below), whose sum is σ = 114291072. Its totient is φ = 27211680.

The previous prime is 65081839. The next prime is 65081843. The reversal of 65081842 is 24818056.

65081842 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 2×650818422 = 8471292316225928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65081798 and 65081807.

It is not an unprimeable number, because it can be changed into a prime (65081843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56118 + ... + 57265.

It is an arithmetic number, because the mean of its divisors is an integer number (7143192).

Almost surely, 265081842 is an apocalyptic number.

65081842 is a deficient number, since it is larger than the sum of its proper divisors (49209230).

65081842 is a wasteful number, since it uses less digits than its factorization.

65081842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113433.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 65081842 is about 8067.3317769880. The cubic root of 65081842 is about 402.2412559743.

Adding to 65081842 its reverse (24818056), we get a palindrome (89899898).

The spelling of 65081842 in words is "sixty-five million, eighty-one thousand, eight hundred forty-two".

Divisors: 1 2 7 14 41 82 287 574 113383 226766 793681 1587362 4648703 9297406 32540921 65081842