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3104112221 = 7263349229
BaseRepresentation
bin1011100100000100…
…1111111001011101
322000022221020110022
42321001033321131
522324123042341
61232003521525
7136631342600
oct27101177135
98008836408
103104112221
111353210501
127276892a5
133a61379c2
14216388337
151327abe4b
hexb904fe5d

3104112221 has 6 divisors (see below), whose sum is σ = 3610906110. Its totient is φ = 2660667576.

The previous prime is 3104112197. The next prime is 3104112259. The reversal of 3104112221 is 1222114013.

It can be written as a sum of positive squares in only one way, i.e., 1938640900 + 1165471321 = 44030^2 + 34139^2 .

It is a de Polignac number, because none of the positive numbers 2k-3104112221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3104112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3104112421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31674566 + ... + 31674663.

It is an arithmetic number, because the mean of its divisors is an integer number (601817685).

Almost surely, 23104112221 is an apocalyptic number.

It is an amenable number.

3104112221 is a deficient number, since it is larger than the sum of its proper divisors (506793889).

3104112221 is an equidigital number, since it uses as much as digits as its factorization.

3104112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63349243 (or 63349236 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 3104112221 is about 55714.5602244153. The cubic root of 3104112221 is about 1458.7441851833.

Adding to 3104112221 its reverse (1222114013), we get a palindrome (4326226234).

The spelling of 3104112221 in words is "three billion, one hundred four million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 7 49 63349229 443444603 3104112221