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3201312109 = 171923430921
BaseRepresentation
bin1011111011010000…
…0010010101101101
322021002211111122011
42332310002111231
523024013441414
61245355121221
7142221463312
oct27664022555
98232744564
103201312109
1113a306a196
12754143211
133c030ab28
1422524ad09
1513b0abdc4
hexbed0256d

3201312109 has 16 divisors (see below), whose sum is σ = 3723166080. Its totient is φ = 2730309120.

The previous prime is 3201312083. The next prime is 3201312119. The reversal of 3201312109 is 9012131023.

It is not a de Polignac number, because 3201312109 - 25 = 3201312077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3201312109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201312119) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 208032 + ... + 222889.

It is an arithmetic number, because the mean of its divisors is an integer number (232697880).

Almost surely, 23201312109 is an apocalyptic number.

It is an amenable number.

3201312109 is a deficient number, since it is larger than the sum of its proper divisors (521853971).

3201312109 is a wasteful number, since it uses less digits than its factorization.

3201312109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430980.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 3201312109 is about 56580.1388209679. The cubic root of 3201312109 is about 1473.8139823876.

The spelling of 3201312109 in words is "three billion, two hundred one million, three hundred twelve thousand, one hundred nine".

Divisors: 1 17 19 23 323 391 437 7429 430921 7325657 8187499 9911183 139187483 168490111 188312477 3201312109