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121414410144 = 253215719313913
BaseRepresentation
bin111000100010011011…
…1001101111110100000
3102121101120122002110100
41301010313031332200
53442124042111034
6131435500102400
711525522313066
oct1610467157640
9377346562410
10121414410144
11475452a6425
121b645534a00
13b5ac23cb51
145c3b12a036
153259245099
hex1c44dcdfa0

121414410144 has 144 divisors (see below), whose sum is σ = 349296889032. Its totient is φ = 40002453504.

The previous prime is 121414410133. The next prime is 121414410149. The reversal of 121414410144 is 441014414121.

121414410144 is a `hidden beast` number, since 1 + 214 + 1 + 441 + 0 + 1 + 4 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 87036800400 + 34377609744 = 295020^2 + 185412^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (121414410149) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8719732 + ... + 8733644.

Almost surely, 2121414410144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121414410144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174648444516).

121414410144 is an abundant number, since it is smaller than the sum of its proper divisors (227882478888).

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

121414410144 is a wasteful number, since it uses less digits than its factorization.

121414410144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14279 (or 14268 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 121414410144 its reverse (441014414121), we get a palindrome (562428824265).

The spelling of 121414410144 in words is "one hundred twenty-one billion, four hundred fourteen million, four hundred ten thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 157 193 288 314 386 471 579 628 772 942 1158 1256 1413 1544 1737 1884 2316 2512 2826 3088 3474 3768 4632 5024 5652 6176 6948 7536 9264 11304 13896 13913 15072 18528 22608 27792 27826 30301 41739 45216 55584 55652 60602 83478 90903 111304 121204 125217 166956 181806 222608 242408 250434 272709 333912 363612 445216 484816 500868 545418 667824 727224 969632 1001736 1090836 1335648 1454448 2003472 2181672 2184341 2685209 2908896 4006944 4363344 4368682 5370418 6553023 8055627 8726688 8737364 10740836 13106046 16111254 17474728 19659069 21481672 24166881 26212092 32222508 34949456 39318138 42963344 48333762 52424184 64445016 69898912 78636276 85926688 96667524 104848368 128890032 157272552 193335048 209696736 257780064 314545104 386670096 421577813 629090208 773340192 843155626 1264733439 1686311252 2529466878 3372622504 3794200317 5058933756 6745245008 7588400634 10117867512 13490490016 15176801268 20235735024 30353602536 40471470048 60707205072 121414410144