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65982950 = 25211177057
BaseRepresentation
bin1111101110110…
…1000111100110
311121011021120222
43323231013212
5113342423300
610314124342
71430563055
oct373550746
9147137528
1065982950
1134277a70
121a1206b2
1310893287
148a9839c
155bd5785
hex3eed1e6

65982950 has 48 divisors (see below), whose sum is σ = 141781104. Its totient is φ = 22579200.

The previous prime is 65982937. The next prime is 65982979. The reversal of 65982950 is 5928956.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5822 + ... + 12878.

It is an arithmetic number, because the mean of its divisors is an integer number (2953773).

Almost surely, 265982950 is an apocalyptic number.

65982950 is an abundant number, since it is smaller than the sum of its proper divisors (75798154).

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

65982950 is a wasteful number, since it uses less digits than its factorization.

65982950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097 (or 7092 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 65982950 is about 8122.9889818958. The cubic root of 65982950 is about 404.0891994983.

The spelling of 65982950 in words is "sixty-five million, nine hundred eighty-two thousand, nine hundred fifty".

Divisors: 1 2 5 10 11 17 22 25 34 50 55 85 110 170 187 275 374 425 550 850 935 1870 4675 7057 9350 14114 35285 70570 77627 119969 155254 176425 239938 352850 388135 599845 776270 1199690 1319659 1940675 2639318 2999225 3881350 5998450 6598295 13196590 32991475 65982950