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213012200212 = 22789155954829
BaseRepresentation
bin1100011001100010000…
…1000011101100010100
3202100211012000221111121
43012120201003230110
511442222110401322
6241504554413324
721250432553530
oct3063041035424
9670735027447
10213012200212
1182379919879
1235349431244
13171190a3026
14a44a304bc0
15581a9d5ec7
hex3198843b14

213012200212 has 48 divisors (see below), whose sum is σ = 431095392000. Its totient is φ = 90205657344.

The previous prime is 213012200179. The next prime is 213012200237. The reversal of 213012200212 is 212002210312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3857614 + ... + 3912442.

It is an arithmetic number, because the mean of its divisors is an integer number (8981154000).

Almost surely, 2213012200212 is an apocalyptic number.

It is an amenable number.

213012200212 is an abundant number, since it is smaller than the sum of its proper divisors (218083191788).

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

213012200212 is a wasteful number, since it uses less digits than its factorization.

213012200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56488 (or 56486 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 213012200212 its reverse (212002210312), we get a palindrome (425014410524).

The spelling of 213012200212 in words is "two hundred thirteen billion, twelve million, two hundred thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 89 178 356 623 1246 1559 2492 3118 6236 10913 21826 43652 54829 109658 138751 219316 277502 383803 555004 767606 971257 1535212 1942514 3885028 4879781 9759562 19519124 34158467 68316934 85478411 136633868 170956822 341913644 598348877 1196697754 2393395508 7607578579 15215157158 30430314316 53253050053 106506100106 213012200212