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65006536 = 2372165833
BaseRepresentation
bin1111011111111…
…0101111001000
311112022200012111
43313332233020
5113120202121
610241152104
71416355300
oct367765710
9145280174
1065006536
1133770411
121992b634
1310610a0a
1488c2600
155a912e1
hex3dfebc8

65006536 has 24 divisors (see below), whose sum is σ = 141788070. Its totient is φ = 27859776.

The previous prime is 65006509. The next prime is 65006537. The reversal of 65006536 is 63560056.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63904036 + 1102500 = 7994^2 + 1050^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65006498 and 65006507.

It is not an unprimeable number, because it can be changed into a prime (65006537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82525 + ... + 83308.

Almost surely, 265006536 is an apocalyptic number.

It is an amenable number.

65006536 is an abundant number, since it is smaller than the sum of its proper divisors (76781534).

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

65006536 is a wasteful number, since it uses less digits than its factorization.

65006536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165853 (or 165842 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 65006536 is about 8062.6630836219. The cubic root of 65006536 is about 402.0860520552.

The spelling of 65006536 in words is "sixty-five million, six thousand, five hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 165833 331666 663332 1160831 1326664 2321662 4643324 8125817 9286648 16251634 32503268 65006536