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3104221221 = 32595845991
BaseRepresentation
bin1011100100000110…
…1010100000100101
322000100010202222100
42321001222200211
522324140034341
61232010122313
7136632305433
oct27101524045
98010122870
103104221221
111353285392
12727720399
133a61754ba
142163b5d53
151327ce3b6
hexb906a825

3104221221 has 12 divisors (see below), whose sum is σ = 4559873760. Its totient is φ = 2034404520.

The previous prime is 3104221201. The next prime is 3104221223. The reversal of 3104221221 is 1221224013.

It is a happy number.

It is not a de Polignac number, because 3104221221 - 25 = 3104221189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3104221194 and 3104221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3104221223) 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 11 ways as a sum of consecutive naturals, for example, 2922465 + ... + 2923526.

It is an arithmetic number, because the mean of its divisors is an integer number (379989480).

Almost surely, 23104221221 is an apocalyptic number.

It is an amenable number.

3104221221 is a deficient number, since it is larger than the sum of its proper divisors (1455652539).

3104221221 is a wasteful number, since it uses less digits than its factorization.

3104221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846056 (or 5846053 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3104221221 is about 55715.5384161367. The cubic root of 3104221221 is about 1458.7612594431.

Adding to 3104221221 its reverse (1221224013), we get a palindrome (4325445234).

The spelling of 3104221221 in words is "three billion, one hundred four million, two hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 3 9 59 177 531 5845991 17537973 52613919 344913469 1034740407 3104221221