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214241411521405 = 5638948677137777
BaseRepresentation
bin110000101101100111110111…
…001110101101101101111101
31001002120021112022220221200101
4300231213313032231231331
5211040112402322141110
62035353051251201101
763061300620032632
oct6055476716555575
91032507468827611
10214241411521405
116229a2aa5a6094
12200415072a6191
139270b55b681c8
143ac94a7db2189
1519b7d9dcb713a
hexc2d9f73adb7d

214241411521405 has 16 divisors (see below), whose sum is σ = 257137081936560. Its totient is φ = 171361538685952.

The previous prime is 214241411521381. The next prime is 214241411521409. The reversal of 214241411521405 is 504125114142412.

It can be written as a sum of positive squares in 8 ways, for example, as 92612849332249 + 121628562189156 = 9623557^2 + 11028534^2 .

It is a cyclic number.

It is not a de Polignac number, because 214241411521405 - 211 = 214241411519357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214241411521409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554917877 + ... + 1555055653.

It is an arithmetic number, because the mean of its divisors is an integer number (16071067621035).

Almost surely, 2214241411521405 is an apocalyptic number.

It is an amenable number.

214241411521405 is a deficient number, since it is larger than the sum of its proper divisors (42895670415155).

214241411521405 is a wasteful number, since it uses less digits than its factorization.

214241411521405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192848.

The product of its (nonzero) digits is 51200, while the sum is 37.

Adding to 214241411521405 its reverse (504125114142412), we get a palindrome (718366525663817).

The spelling of 214241411521405 in words is "two hundred fourteen trillion, two hundred forty-one billion, four hundred eleven million, five hundred twenty-one thousand, four hundred five".

Divisors: 1 5 6389 31945 48677 137777 243385 688885 310997353 880257253 1554986765 4401286265 6706571029 33532855145 42848282304281 214241411521405