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3213102320 = 24540163779
BaseRepresentation
bin1011111110000100…
…0000110011110000
322021221000111202122
42333201000303300
523040023233240
61250455533412
7142423630151
oct27741006360
98257014678
103213102320
1113a979236a
1275808a268
133c28a849c
14226a39928
1513c13a4b5
hexbf840cf0

3213102320 has 20 divisors (see below), whose sum is σ = 7470463080. Its totient is φ = 1285240896.

The previous prime is 3213102307. The next prime is 3213102329. The reversal of 3213102320 is 232013123.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213102329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20081810 + ... + 20081969.

It is an arithmetic number, because the mean of its divisors is an integer number (373523154).

Almost surely, 23213102320 is an apocalyptic number.

It is an amenable number.

3213102320 is an abundant number, since it is smaller than the sum of its proper divisors (4257360760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213102320 is a wasteful number, since it uses less digits than its factorization.

3213102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40163792 (or 40163786 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3213102320 is about 56684.2334339982. The cubic root of 3213102320 is about 1475.6210840314.

Adding to 3213102320 its reverse (232013123), we get a palindrome (3445115443).

The spelling of 3213102320 in words is "three billion, two hundred thirteen million, one hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 40163779 80327558 160655116 200818895 321310232 401637790 642620464 803275580 1606551160 3213102320