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243240222102213 = 37231074706569573
BaseRepresentation
bin110111010011100111000111…
…000010001001001011000101
31011220020112112022002112021210
4313103213013002021023011
5223340221433324232323
62221155003154402033
7102143345312663520
oct6723470702111305
91156215468075253
10243240222102213
117055a665131a86
1223345702290319
13a5955ba78048b
14440cc64d7bbb7
151d1c382bce293
hexdd39c70892c5

243240222102213 has 32 divisors (see below), whose sum is σ = 390381706745856. Its totient is φ = 131708642902848.

The previous prime is 243240222102179. The next prime is 243240222102263. The reversal of 243240222102213 is 312201222042342.

It is not a de Polignac number, because 243240222102213 - 217 = 243240221971141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243240222102263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2353233106 + ... + 2353336467.

It is an arithmetic number, because the mean of its divisors is an integer number (12199428335808).

Almost surely, 2243240222102213 is an apocalyptic number.

243240222102213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

243240222102213 is a deficient number, since it is larger than the sum of its proper divisors (147141484643643).

243240222102213 is a wasteful number, since it uses less digits than its factorization.

243240222102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706569713.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 243240222102213 its reverse (312201222042342), we get a palindrome (555441444144555).

The spelling of 243240222102213 in words is "two hundred forty-three trillion, two hundred forty billion, two hundred twenty-two million, one hundred two thousand, two hundred thirteen".

Divisors: 1 3 7 21 23 69 107 161 321 483 749 2247 2461 7383 17227 51681 4706569573 14119708719 32945987011 98837961033 108251100179 324753300537 503602944311 757757701253 1510808832933 2273273103759 3525220610177 10575661830531 11582867719153 34748603157459 81080074034071 243240222102213