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121105325 = 5211440383
BaseRepresentation
bin1110011011111…
…10101110101101
322102212210021102
413031332232231
5222000332300
620003412445
73000243515
oct715765655
9272783242
10121105325
11623a7250
1234684125
131c123073
1412126845
15a9730d5
hex737ebad

121105325 has 12 divisors (see below), whose sum is σ = 163822848. Its totient is φ = 88076400.

The previous prime is 121105319. The next prime is 121105343. The reversal of 121105325 is 523501121.

It is a happy number.

It is not a de Polignac number, because 121105325 - 26 = 121105261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121105297 and 121105306.

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 11 ways as a sum of consecutive naturals, for example, 219917 + ... + 220466.

It is an arithmetic number, because the mean of its divisors is an integer number (13651904).

Almost surely, 2121105325 is an apocalyptic number.

It is an amenable number.

121105325 is a deficient number, since it is larger than the sum of its proper divisors (42717523).

121105325 is a wasteful number, since it uses less digits than its factorization.

121105325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440404 (or 440399 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 121105325 is about 11004.7864586279. The cubic root of 121105325 is about 494.7522141815.

Adding to 121105325 its reverse (523501121), we get a palindrome (644606446).

The spelling of 121105325 in words is "one hundred twenty-one million, one hundred five thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 275 440383 2201915 4844213 11009575 24221065 121105325