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212131432033 = 1039204168847
BaseRepresentation
bin1100010110010000000…
…1001100011001100001
3202021112210201021200221
43011210001030121201
511433421121311113
6241241332443041
721216546264343
oct3054401143141
9667483637627
10212131432033
1181a67732694
1235142479481
1317008781221
14a3a5353293
1557b850798d
hex316404c661

212131432033 has 4 divisors (see below), whose sum is σ = 212335601920. Its totient is φ = 211927262148.

The previous prime is 212131432001. The next prime is 212131432049. The reversal of 212131432033 is 330234131212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212131432033 - 25 = 212131432001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212131431989 and 212131432007.

It is not an unprimeable number, because it can be changed into a prime (212131402033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102083385 + ... + 102085462.

It is an arithmetic number, because the mean of its divisors is an integer number (53083900480).

Almost surely, 2212131432033 is an apocalyptic number.

It is an amenable number.

212131432033 is a deficient number, since it is larger than the sum of its proper divisors (204169887).

212131432033 is a wasteful number, since it uses less digits than its factorization.

212131432033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204169886.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 212131432033 its reverse (330234131212), we get a palindrome (542365563245).

The spelling of 212131432033 in words is "two hundred twelve billion, one hundred thirty-one million, four hundred thirty-two thousand, thirty-three".

Divisors: 1 1039 204168847 212131432033