Search a number
-
+
10230131223221 = 721343383975157
BaseRepresentation
bin1001010011011110001101…
…0101100110101010110101
31100012222202102201200010012
42110313203111212222311
52320102302043120341
633431353555510005
72104050121434200
oct224674325465265
940188672650105
1010230131223221
113294635416198
1211928022b8305
1359290aa95c60
142751d8c56937
1512b1987b20eb
hex94de3566ab5

10230131223221 has 48 divisors (see below), whose sum is σ = 13148063115264. Its totient is φ = 7885283043456.

The previous prime is 10230131223187. The next prime is 10230131223269. The reversal of 10230131223221 is 12232213103201.

It is not a de Polignac number, because 10230131223221 - 230 = 10229057481397 is a prime.

It is a super-2 number, since 2×102301312232212 (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10230131223121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10003175 + ... + 10978331.

It is an arithmetic number, because the mean of its divisors is an integer number (273917981568).

Almost surely, 210230131223221 is an apocalyptic number.

It is an amenable number.

10230131223221 is a deficient number, since it is larger than the sum of its proper divisors (2917931892043).

10230131223221 is a wasteful number, since it uses less digits than its factorization.

10230131223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975610 (or 975603 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10230131223221 its reverse (12232213103201), we get a palindrome (22462344326422).

The spelling of 10230131223221 in words is "ten trillion, two hundred thirty billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 7 13 43 49 91 301 383 559 637 2107 2681 3913 4979 16469 18767 27391 34853 115283 214097 243971 806981 975157 1498679 6826099 10490753 12677041 41931751 47782693 88739287 293522257 373485131 545112763 621175009 2054655799 2614395917 3815789341 4855306703 16059860633 18300771419 26710525387 33987146921 112419024431 208778188229 237910028447 786933171017 1461447317603 10230131223221