Search a number
-
+
200231013021 = 31329317522623
BaseRepresentation
bin1011101001111010110…
…0101100101010011101
3201010211102222100210020
42322132230230222131
511240033114404041
6231552421302353
720315624346234
oct2723654545235
9633742870706
10200231013021
1177a10206756
1232980b649b9
1315b60144580
149996a57b1b
15531d8a7866
hex2e9eb2ca9d

200231013021 has 16 divisors (see below), whose sum is σ = 288492481536. Its totient is φ = 122798534976.

The previous prime is 200231012999. The next prime is 200231013067. The reversal of 200231013021 is 120310132002.

It is not a de Polignac number, because 200231013021 - 27 = 200231012893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200231013721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8749885 + ... + 8772738.

It is an arithmetic number, because the mean of its divisors is an integer number (18030780096).

Almost surely, 2200231013021 is an apocalyptic number.

It is an amenable number.

200231013021 is a deficient number, since it is larger than the sum of its proper divisors (88261468515).

200231013021 is a wasteful number, since it uses less digits than its factorization.

200231013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522932.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200231013021 its reverse (120310132002), we get a palindrome (320541145023).

The spelling of 200231013021 in words is "two hundred billion, two hundred thirty-one million, thirteen thousand, twenty-one".

Divisors: 1 3 13 39 293 879 3809 11427 17522623 52567869 227794099 683382297 5134128539 15402385617 66743671007 200231013021