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213543031413 = 3176179868877
BaseRepresentation
bin1100011011100000101…
…0000001001001110101
3202102012011212222000110
43012320022001021311
511444314004001123
6242033400133233
721266536550415
oct3067012011165
9672164788013
10213543031413
1182621524148
1235477167219
13171a206152a
14a49aa04645
15584c3de493
hex31b8281275

213543031413 has 32 divisors (see below), whose sum is σ = 310293711360. Its totient is φ = 130122869760.

The previous prime is 213543031349. The next prime is 213543031417. The reversal of 213543031413 is 314130345312.

It is a happy number.

It is not a de Polignac number, because 213543031413 - 26 = 213543031349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213543031417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188670 + ... + 680207.

It is an arithmetic number, because the mean of its divisors is an integer number (9696678480).

Almost surely, 2213543031413 is an apocalyptic number.

It is an amenable number.

213543031413 is a deficient number, since it is larger than the sum of its proper divisors (96750679947).

213543031413 is a wasteful number, since it uses less digits than its factorization.

213543031413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869037.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 213543031413 its reverse (314130345312), we get a palindrome (527673376725).

The spelling of 213543031413 in words is "two hundred thirteen billion, five hundred forty-three million, thirty-one thousand, four hundred thirteen".

Divisors: 1 3 17 51 61 79 183 237 1037 1343 3111 4029 4819 14457 81923 245769 868877 2606631 14770909 44312727 53001497 68641283 159004491 205923849 901025449 1166901811 2703076347 3500705433 4187118263 12561354789 71181010471 213543031413