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122432100212 = 22192101839473
BaseRepresentation
bin111001000000110000…
…1011001011101110100
3102201000111121002210002
41302001201121131310
54001220104201322
6132124452450432
711562660452402
oct1620141313564
9381014532702
10122432100212
1147a17801aa4
121b88a319a18
13b712031c16
145cd6360472
1532b876cc92
hex1c81859774

122432100212 has 36 divisors (see below), whose sum is σ = 228365470116. Its totient is φ = 57419884800.

The previous prime is 122432100181. The next prime is 122432100223. The reversal of 122432100212 is 212001234221.

It can be written as a sum of positive squares in 2 ways, for example, as 96692390116 + 25739710096 = 310954^2 + 160436^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 273893 + ... + 565580.

It is an arithmetic number, because the mean of its divisors is an integer number (6343485281).

Almost surely, 2122432100212 is an apocalyptic number.

It is an amenable number.

122432100212 is a deficient number, since it is larger than the sum of its proper divisors (105933369904).

122432100212 is a wasteful number, since it uses less digits than its factorization.

122432100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839616 (or 839595 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122432100212 its reverse (212001234221), we get a palindrome (334433334433).

The spelling of 122432100212 in words is "one hundred twenty-two billion, four hundred thirty-two million, one hundred thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 101 202 361 404 722 1444 1919 3838 7676 36461 72922 145844 839473 1678946 3357892 15949987 31899974 63799948 84786773 169573546 303049753 339147092 606099506 1212199012 1610948687 3221897374 6443794748 30608025053 61216050106 122432100212