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120121124 = 2247216361
BaseRepresentation
bin1110010100011…
…10011100100100
322101000210012112
413022032130210
5221222333444
615530340152
72656004234
oct712163444
9271023175
10120121124
1161894862
123428a658
131bb6a0b6
1411d4bcc4
15a82b69e
hex728e724

120121124 has 12 divisors (see below), whose sum is σ = 210289548. Its totient is φ = 60038400.

The previous prime is 120121123. The next prime is 120121163. The reversal of 120121124 is 421121021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46676224 + 73444900 = 6832^2 + 8570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120121099 and 120121108.

It is not an unprimeable number, because it can be changed into a prime (120121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15704 + ... + 22064.

It is an arithmetic number, because the mean of its divisors is an integer number (17524129).

Almost surely, 2120121124 is an apocalyptic number.

It is an amenable number.

120121124 is a deficient number, since it is larger than the sum of its proper divisors (90168424).

120121124 is a wasteful number, since it uses less digits than its factorization.

120121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11086 (or 11084 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 120121124 is about 10959.9782846500. The cubic root of 120121124 is about 493.4083132119.

Adding to 120121124 its reverse (421121021), we get a palindrome (541242145).

The spelling of 120121124 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-four".

Divisors: 1 2 4 4721 6361 9442 12722 18884 25444 30030281 60060562 120121124