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121341454244 = 22161318806797
BaseRepresentation
bin111000100000010000…
…0111010011110100100
3102121012111100112202222
41301000200322132210
53442001403013434
6131424332251512
711523645225503
oct1610040723644
9377174315688
10121341454244
11475080a659a
121b625010b98
13b59a0a7a8a
145c3157883a
153252b3372e
hex1c4083a7a4

121341454244 has 12 divisors (see below), whose sum is σ = 212479203804. Its totient is φ = 60633110304.

The previous prime is 121341454211. The next prime is 121341454249. The reversal of 121341454244 is 442454143121.

It can be written as a sum of positive squares in 2 ways, for example, as 28590751744 + 92750702500 = 169088^2 + 304550^2 .

It is a super-2 number, since 2×1213414542442 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121341454249) 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, 9396947 + ... + 9409850.

It is an arithmetic number, because the mean of its divisors is an integer number (17706600317).

Almost surely, 2121341454244 is an apocalyptic number.

It is an amenable number.

121341454244 is a deficient number, since it is larger than the sum of its proper divisors (91137749560).

121341454244 is a wasteful number, since it uses less digits than its factorization.

121341454244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18808414 (or 18808412 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 121341454244 its reverse (442454143121), we get a palindrome (563795597365).

The spelling of 121341454244 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred fifty-four thousand, two hundred forty-four".

Divisors: 1 2 4 1613 3226 6452 18806797 37613594 75227188 30335363561 60670727122 121341454244