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20244213130321 = 472207195164449
BaseRepresentation
bin1001001101001011110010…
…01000011110010001010001
32122200022212000112220221101
410212211321020132101101
510123140122030132241
6111020021345024401
74156411321255315
oct446457110362121
978608760486841
1020244213130321
1164a5582601464
12232b56a025101
13b3b0374aa78b
144ddb7a29db45
152518e9b16e31
hex12697921e451

20244213130321 has 8 divisors (see below), whose sum is σ = 20684309068800. Its totient is φ = 19804507525248.

The previous prime is 20244213130307. The next prime is 20244213130417. The reversal of 20244213130321 is 12303131244202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20244213130321 - 223 = 20244204741713 is a prime.

It is a super-2 number, since 2×202442131303212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20244213130321.

It is not an unprimeable number, because it can be changed into a prime (20244213130121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97478496 + ... + 97685953.

It is an arithmetic number, because the mean of its divisors is an integer number (2585538633600).

Almost surely, 220244213130321 is an apocalyptic number.

It is an amenable number.

20244213130321 is a deficient number, since it is larger than the sum of its proper divisors (440095938479).

20244213130321 is a wasteful number, since it uses less digits than its factorization.

20244213130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195166703.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20244213130321 its reverse (12303131244202), we get a palindrome (32547344374523).

The spelling of 20244213130321 in words is "twenty trillion, two hundred forty-four billion, two hundred thirteen million, one hundred thirty thousand, three hundred twenty-one".

Divisors: 1 47 2207 103729 195164449 9172729103 430727938943 20244213130321