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121040230 = 2531338671
BaseRepresentation
bin1110011011011…
…10110101100110
322102202110222111
413031232311212
5221441241410
620002151234
72666552653
oct715566546
9272673874
10121040230
1162362353
123465251a
131c0cc54c
141210ac2a
15a95db8a
hex736ed66

121040230 has 16 divisors (see below), whose sum is σ = 218574144. Its totient is φ = 48260160.

The previous prime is 121040197. The next prime is 121040233. The reversal of 121040230 is 32040121.

It is a self number, because there is not a number n which added to its sum of digits gives 121040230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121040233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16206 + ... + 22465.

It is an arithmetic number, because the mean of its divisors is an integer number (13660884).

Almost surely, 2121040230 is an apocalyptic number.

121040230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121040230 is a deficient number, since it is larger than the sum of its proper divisors (97533914).

121040230 is a wasteful number, since it uses less digits than its factorization.

121040230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38991.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121040230 is about 11001.8284843929. The cubic root of 121040230 is about 494.6635539804.

Adding to 121040230 its reverse (32040121), we get a palindrome (153080351).

The spelling of 121040230 in words is "one hundred twenty-one million, forty thousand, two hundred thirty".

Divisors: 1 2 5 10 313 626 1565 3130 38671 77342 193355 386710 12104023 24208046 60520115 121040230