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13230020212 = 2245718613889
BaseRepresentation
bin11000101001001001…
…00001011001110100
31021011000121122212121
430110210201121310
5204043341121322
610024445125324
7645565213333
oct142444413164
937130548777
1013230020212
11567a002002
122692859844
13132ac3a236
148d7123d1a
1552673aec7
hex314921674

13230020212 has 24 divisors (see below), whose sum is σ = 23221635080. Its totient is φ = 6595292160.

The previous prime is 13230020203. The next prime is 13230020249. The reversal of 13230020212 is 21202003231.

It can be written as a sum of positive squares in 4 ways, for example, as 1450391056 + 11779629156 = 38084^2 + 108534^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3399964 + ... + 3403852.

Almost surely, 213230020212 is an apocalyptic number.

It is an amenable number.

13230020212 is a deficient number, since it is larger than the sum of its proper divisors (9991614868).

13230020212 is a wasteful number, since it uses less digits than its factorization.

13230020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211 (or 6209 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13230020212 its reverse (21202003231), we get a palindrome (34432023443).

The spelling of 13230020212 in words is "thirteen billion, two hundred thirty million, twenty thousand, two hundred twelve".

Divisors: 1 2 4 457 914 1828 1861 3722 3889 7444 7778 15556 850477 1700954 1777273 3401908 3554546 7109092 7237429 14474858 28949716 3307505053 6615010106 13230020212