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243121235201 = 13232953529027
BaseRepresentation
bin1110001001101100100…
…1111010010100000001
3212020112112111101202122
43202123021322110001
512440403014011301
6303404403454025
723364525254615
oct3423311722401
9766475441678
10243121235201
119411a665469
123b150987315
1319c06c23170
14baa5013345
1564cde9b81b
hex389b27a501

243121235201 has 32 divisors (see below), whose sum is σ = 287960520960. Its totient is φ = 203349129984.

The previous prime is 243121235183. The next prime is 243121235213. The reversal of 243121235201 is 102532121342.

It is not a de Polignac number, because 243121235201 - 230 = 242047493377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243121235501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195050 + ... + 724076.

It is an arithmetic number, because the mean of its divisors is an integer number (8998766280).

Almost surely, 2243121235201 is an apocalyptic number.

It is an amenable number.

243121235201 is a deficient number, since it is larger than the sum of its proper divisors (44839285759).

243121235201 is a wasteful number, since it uses less digits than its factorization.

243121235201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529145.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 243121235201 its reverse (102532121342), we get a palindrome (345653356543).

The spelling of 243121235201 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred thirty-five thousand, two hundred one".

Divisors: 1 13 23 29 53 299 377 667 689 1219 1537 8671 15847 19981 35351 459563 529027 6877351 12167621 15341783 28038431 158179073 199443179 352861009 364499603 644883913 813114499 4587193117 8383490869 10570488487 18701633477 243121235201