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328080769 = 5923072
BaseRepresentation
bin10011100011100…
…001110110000001
3211212100020012121
4103203201312001
51132442041034
652315524241
711062432462
oct2343416601
9755306177
10328080769
11159213a35
1291a59681
1352c80343
1431802d69
151dc091b4
hex138e1d81

328080769 has 9 divisors (see below), whose sum is σ = 334826337. Its totient is φ = 321469524.

The previous prime is 328080749. The next prime is 328080791. The reversal of 328080769 is 967080823.

The square root of 328080769 is 18113.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 328080769 - 25 = 328080737 is a prime.

It is a super-2 number, since 2×3280807692 = 215273981975262722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328080749) 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 8 ways as a sum of consecutive naturals, for example, 1068514 + ... + 1068820.

Almost surely, 2328080769 is an apocalyptic number.

328080769 is the 18113-rd square number.

328080769 is the 9057-th centered octagonal number.

It is an amenable number.

328080769 is a deficient number, since it is larger than the sum of its proper divisors (6745568).

328080769 is an frugal number, since it uses more digits than its factorization.

328080769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The cubic root of 328080769 is about 689.7000509629.

The spelling of 328080769 in words is "three hundred twenty-eight million, eighty thousand, seven hundred sixty-nine".

Divisors: 1 59 307 3481 18113 94249 1068667 5560691 328080769