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3285320831 = 1310710972153
BaseRepresentation
bin1100001111010010…
…0000010001111111
322110221220120221022
43003310200101333
523212020231311
61301555454355
7144261523562
oct30364402177
98427816838
103285320831
111436529191
127782b73bb
13404842a30
142324784d9
151436535db
hexc3d2047f

3285320831 has 16 divisors (see below), whose sum is σ = 3576019104. Its totient is φ = 3000129024.

The previous prime is 3285320803. The next prime is 3285320849. The reversal of 3285320831 is 1380235823.

3285320831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3285320831 - 218 = 3285058687 is a prime.

It is a super-2 number, since 2×32853208312 = 21586665925205061122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3285320791 and 3285320800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3285320861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1524851 + ... + 1527003.

It is an arithmetic number, because the mean of its divisors is an integer number (223501194).

Almost surely, 23285320831 is an apocalyptic number.

3285320831 is a deficient number, since it is larger than the sum of its proper divisors (290698273).

3285320831 is a wasteful number, since it uses less digits than its factorization.

3285320831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 3285320831 is about 57317.7182989693. The cubic root of 3285320831 is about 1486.5947536440.

The spelling of 3285320831 in words is "three billion, two hundred eighty-five million, three hundred twenty thousand, eight hundred thirty-one".

Divisors: 1 13 107 1097 1391 2153 14261 27989 117379 230371 1525927 2361841 2994823 30703933 252716987 3285320831