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121534422 = 23197229449
BaseRepresentation
bin1110011111001…
…11011111010110
322110200120212220
413033213133112
5222103100142
620020523210
73004011522
oct717473726
9273616786
10121534422
116266a679
1234850506
131c243479
14121d8d82
15aa0a2ec
hex73e77d6

121534422 has 32 divisors (see below), whose sum is σ = 245916000. Its totient is φ = 40040448.

The previous prime is 121534409. The next prime is 121534453. The reversal of 121534422 is 224435121.

It is a junction number, because it is equal to n+sod(n) for n = 121534392 and 121534401.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 270454 + ... + 270902.

It is an arithmetic number, because the mean of its divisors is an integer number (7684875).

Almost surely, 2121534422 is an apocalyptic number.

121534422 is an abundant number, since it is smaller than the sum of its proper divisors (124381578).

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

121534422 is a wasteful number, since it uses less digits than its factorization.

121534422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its digits is 1920, while the sum is 24.

The square root of 121534422 is about 11024.2651455777. The cubic root of 121534422 is about 495.3358561440.

Adding to 121534422 its reverse (224435121), we get a palindrome (345969543).

The spelling of 121534422 in words is "one hundred twenty-one million, five hundred thirty-four thousand, four hundred twenty-two".

Divisors: 1 2 3 6 197 229 394 449 458 591 687 898 1182 1347 1374 2694 45113 88453 90226 102821 135339 176906 205642 265359 270678 308463 530718 616926 20255737 40511474 60767211 121534422