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3310420221 = 321732126153
BaseRepresentation
bin1100010101010001…
…0000000011111101
322112201010202211100
43011110100003331
523234431421341
61304253443313
7145015051623
oct30524200375
98481122740
103310420221
111449711789
127847a0539
13409ac0244
1423592d513
151459603b6
hexc55100fd

3310420221 has 12 divisors (see below), whose sum is σ = 4809360348. Its totient is φ = 2194188864.

The previous prime is 3310420207. The next prime is 3310420271. The reversal of 3310420221 is 1220240133.

It can be written as a sum of positive squares in 2 ways, for example, as 1901919321 + 1408500900 = 43611^2 + 37530^2 .

It is not a de Polignac number, because 3310420221 - 215 = 3310387453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3310420194 and 3310420203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3310420271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1061520 + ... + 1064633.

It is an arithmetic number, because the mean of its divisors is an integer number (400780029).

Almost surely, 23310420221 is an apocalyptic number.

It is an amenable number.

3310420221 is a deficient number, since it is larger than the sum of its proper divisors (1498940127).

3310420221 is a wasteful number, since it uses less digits than its factorization.

3310420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126332 (or 2126329 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3310420221 is about 57536.2513638141. The cubic root of 3310420221 is about 1490.3709451340.

Adding to 3310420221 its reverse (1220240133), we get a palindrome (4530660354).

The spelling of 3310420221 in words is "three billion, three hundred ten million, four hundred twenty thousand, two hundred twenty-one".

Divisors: 1 3 9 173 519 1557 2126153 6378459 19135377 367824469 1103473407 3310420221