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212020102231 = 7191594136107
BaseRepresentation
bin1100010101110101100…
…0100000010001010111
3202021021001020010220221
43011131120200101113
511433204121232411
6241222314335211
721214025063560
oct3053530402127
9667231203827
10212020102231
1181a0a902993
123511112a507
1316cbb6a17c2
14a394653167
1557ad866071
hex315d620457

212020102231 has 8 divisors (see below), whose sum is σ = 255061777280. Its totient is φ = 172166699448.

The previous prime is 212020102213. The next prime is 212020102243. The reversal of 212020102231 is 132201020212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212020102231 - 27 = 212020102103 is a prime.

It is a super-2 number, since 2×2120201022312 (a number of 23 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 (212020102531) 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 7 ways as a sum of consecutive naturals, for example, 797067921 + ... + 797068186.

It is an arithmetic number, because the mean of its divisors is an integer number (31882722160).

Almost surely, 2212020102231 is an apocalyptic number.

212020102231 is a deficient number, since it is larger than the sum of its proper divisors (43041675049).

212020102231 is a wasteful number, since it uses less digits than its factorization.

212020102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594136133.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212020102231 its reverse (132201020212), we get a palindrome (344221122443).

The spelling of 212020102231 in words is "two hundred twelve billion, twenty million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 7 19 133 1594136107 11158952749 30288586033 212020102231