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212031203333 = 23223149327689
BaseRepresentation
bin1100010101111000001…
…0110110100000000101
3202021021211010010202212
43011132002312200011
511433214442001313
6241223352313205
721214221330365
oct3053602664005
9667254103685
10212031203333
1181a160a5354
12351149a2805
1316cc0a8a5c1
14a395d029a5
1557ae80a3a8
hex315e0b6805

212031203333 has 16 divisors (see below), whose sum is σ = 222398991360. Its totient is φ = 201760462464.

The previous prime is 212031203327. The next prime is 212031203339. The reversal of 212031203333 is 333302130212.

It is an interprime number because it is at equal distance from previous prime (212031203327) and next prime (212031203339).

It is a cyclic number.

It is not a de Polignac number, because 212031203333 - 210 = 212031202309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212031203299 and 212031203308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031203339) 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, 7643753 + ... + 7671441.

It is an arithmetic number, because the mean of its divisors is an integer number (13899936960).

Almost surely, 2212031203333 is an apocalyptic number.

212031203333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212031203333 is a deficient number, since it is larger than the sum of its proper divisors (10367788027).

212031203333 is a wasteful number, since it uses less digits than its factorization.

212031203333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29428.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 212031203333 its reverse (333302130212), we get a palindrome (545333333545).

The spelling of 212031203333 in words is "two hundred twelve billion, thirty-one million, two hundred three thousand, three hundred thirty-three".

Divisors: 1 23 223 1493 5129 27689 34339 332939 636847 6174647 7657597 41339677 142016881 950812571 9218747971 212031203333