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212430232122 = 23291220863403
BaseRepresentation
bin1100010111010111010…
…1000001101000111010
3202022022121221220100220
43011311311001220322
511440024114411442
6241331125040510
721230135115543
oct3056565015072
9668277856326
10212430232122
1182100367609
1235206556136
131705564bb04
14a3d2cd34ca
1557d487aeec
hex3175d41a3a

212430232122 has 16 divisors (see below), whose sum is σ = 439510825440. Its totient is φ = 68368350512.

The previous prime is 212430232117. The next prime is 212430232181. The reversal of 212430232122 is 221232034212.

212430232122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212430232092 and 212430232101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610431528 + ... + 610431875.

It is an arithmetic number, because the mean of its divisors is an integer number (27469426590).

Almost surely, 2212430232122 is an apocalyptic number.

212430232122 is an abundant number, since it is smaller than the sum of its proper divisors (227080593318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212430232122 is a wasteful number, since it uses less digits than its factorization.

212430232122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220863437.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212430232122 its reverse (221232034212), we get a palindrome (433662266334).

The spelling of 212430232122 in words is "two hundred twelve billion, four hundred thirty million, two hundred thirty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 29 58 87 174 1220863403 2441726806 3662590209 7325180418 35405038687 70810077374 106215116061 212430232122