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213131203022 = 2195608715869
BaseRepresentation
bin1100011001111110011…
…1000001000111001110
3202101010110221220200002
43012133213001013032
511442443041444042
6241524445204302
721253406222513
oct3063747010716
9671113856602
10213131203022
118243000a401
1235381260692
131713793b0aa
14a45c04130a
155826191132
hex319f9c11ce

213131203022 has 8 divisors (see below), whose sum is σ = 336522952200. Its totient is φ = 100956885624.

The previous prime is 213131202997. The next prime is 213131203027. The reversal of 213131203022 is 220302131312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213131202985 and 213131203003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213131203027) 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, 2804357897 + ... + 2804357972.

It is an arithmetic number, because the mean of its divisors is an integer number (42065369025).

Almost surely, 2213131203022 is an apocalyptic number.

213131203022 is a deficient number, since it is larger than the sum of its proper divisors (123391749178).

213131203022 is a wasteful number, since it uses less digits than its factorization.

213131203022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608715890.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213131203022 its reverse (220302131312), we get a palindrome (433433334334).

The spelling of 213131203022 in words is "two hundred thirteen billion, one hundred thirty-one million, two hundred three thousand, twenty-two".

Divisors: 1 2 19 38 5608715869 11217431738 106565601511 213131203022