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65248072 = 238156009
BaseRepresentation
bin1111100011100…
…1101101001000
311112202221112021
43320321231020
5113200414242
610250254224
71421412421
oct370715510
9145687467
1065248072
113391592a
1219a27374
1310696936
148946648
155adcb67
hex3e39b48

65248072 has 8 divisors (see below), whose sum is σ = 122340150. Its totient is φ = 32624032.

The previous prime is 65248063. The next prime is 65248093. The reversal of 65248072 is 27084256.

It can be written as a sum of positive squares in only one way, i.e., 51065316 + 14182756 = 7146^2 + 3766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×652480723 (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4077997 + ... + 4078012.

Almost surely, 265248072 is an apocalyptic number.

It is an amenable number.

65248072 is a deficient number, since it is larger than the sum of its proper divisors (57092078).

65248072 is a wasteful number, since it uses less digits than its factorization.

65248072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156015 (or 8156011 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 65248072 is about 8077.6278696162. The cubic root of 65248072 is about 402.5834288179.

The spelling of 65248072 in words is "sixty-five million, two hundred forty-eight thousand, seventy-two".

Divisors: 1 2 4 8 8156009 16312018 32624036 65248072