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3212004121 = 10131802021
BaseRepresentation
bin1011111101110011…
…0100101100011001
322021211221201022121
42333130310230121
523034233112441
61250420221241
7142411404334
oct27734645431
98254851277
103212004121
1113a9102267
1275783a821
133c25b2671
1422683161b
1513bebedd1
hexbf734b19

3212004121 has 4 divisors (see below), whose sum is σ = 3243806244. Its totient is φ = 3180202000.

The previous prime is 3212004113. The next prime is 3212004163. The reversal of 3212004121 is 1214002123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1536248025 + 1675756096 = 39195^2 + 40936^2 .

It is a cyclic number.

It is not a de Polignac number, because 3212004121 - 23 = 3212004113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212004095 and 3212004104.

It is not an unprimeable number, because it can be changed into a prime (3212004181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15900910 + ... + 15901111.

It is an arithmetic number, because the mean of its divisors is an integer number (810951561).

Almost surely, 23212004121 is an apocalyptic number.

It is an amenable number.

3212004121 is a deficient number, since it is larger than the sum of its proper divisors (31802123).

3212004121 is a wasteful number, since it uses less digits than its factorization.

3212004121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31802122.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3212004121 is about 56674.5456179403. The cubic root of 3212004121 is about 1475.4529484729.

Adding to 3212004121 its reverse (1214002123), we get a palindrome (4426006244).

The spelling of 3212004121 in words is "three billion, two hundred twelve million, four thousand, one hundred twenty-one".

Divisors: 1 101 31802021 3212004121