Search a number
-
+
212203033031 = 11811161314747
BaseRepresentation
bin1100010110100001001…
…0010101000111000111
3202021201210102222210202
43011220102111013013
511434042434024111
6241252411241115
721221406006533
oct3055022250707
9667653388722
10212203033031
1181aa4097570
123516244919b
131701a560692
14a3b0a70bc3
1557be94cb3b
hex31684951c7

212203033031 has 16 divisors (see below), whose sum is σ = 231939082368. Its totient is φ = 192541471200.

The previous prime is 212203033027. The next prime is 212203033073. The reversal of 212203033031 is 130330302212.

It is a cyclic number.

It is not a de Polignac number, because 212203033031 - 22 = 212203033027 is a prime.

It is a super-2 number, since 2×2122030330312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212203032994 and 212203033012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212203003031) 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 15 ways as a sum of consecutive naturals, for example, 14382200 + ... + 14396946.

It is an arithmetic number, because the mean of its divisors is an integer number (14496192648).

Almost surely, 2212203033031 is an apocalyptic number.

212203033031 is a deficient number, since it is larger than the sum of its proper divisors (19736049337).

212203033031 is a wasteful number, since it uses less digits than its factorization.

212203033031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17182.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212203033031 its reverse (130330302212), we get a palindrome (342533335243).

The spelling of 212203033031 in words is "two hundred twelve billion, two hundred three million, thirty-three thousand, thirty-one".

Divisors: 1 11 811 1613 8921 14747 17743 162217 1308143 11959817 14389573 23786911 131557987 261656021 19291184821 212203033031