Search a number
-
+
210131030200111 = 1911059527905269
BaseRepresentation
bin101111110001110011110001…
…011010010100111100101111
31000120000022220210022010220021
4233301303301122110330233
5210020241322212400421
62022524510154303011
762155315550211256
oct5761636132247457
91016008823263807
10210131030200111
1160a55084497049
121b698974a27a67
13903336a871197
1439c6578d8b79d
151945ecc4e0341
hexbf1cf1694f2f

210131030200111 has 4 divisors (see below), whose sum is σ = 221190558105400. Its totient is φ = 199071502294824.

The previous prime is 210131030200031. The next prime is 210131030200129. The reversal of 210131030200111 is 111002030131012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210131030200111 - 27 = 210131030199983 is a prime.

It is a super-2 number, since 2×2101310302001112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210131030203111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5529763952616 + ... + 5529763952653.

It is an arithmetic number, because the mean of its divisors is an integer number (55297639526350).

Almost surely, 2210131030200111 is an apocalyptic number.

210131030200111 is a deficient number, since it is larger than the sum of its proper divisors (11059527905289).

210131030200111 is a wasteful number, since it uses less digits than its factorization.

210131030200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11059527905288.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 210131030200111 its reverse (111002030131012), we get a palindrome (321133060331123).

The spelling of 210131030200111 in words is "two hundred ten trillion, one hundred thirty-one billion, thirty million, two hundred thousand, one hundred eleven".

Divisors: 1 19 11059527905269 210131030200111