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121849607 = 1123481619
BaseRepresentation
bin1110100001101…
…00011100000111
322111021121020102
413100310130013
5222143141412
620031354315
73006463445
oct720643407
9274247212
10121849607
1162865460
123498299b
131c323a79
141227bb95
15aa6d8c2
hex7434707

121849607 has 8 divisors (see below), whose sum is σ = 138706560. Its totient is φ = 105955960.

The previous prime is 121849589. The next prime is 121849661. The reversal of 121849607 is 706948121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121849607 - 214 = 121833223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121849697) 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 7 ways as a sum of consecutive naturals, for example, 240557 + ... + 241062.

It is an arithmetic number, because the mean of its divisors is an integer number (17338320).

Almost surely, 2121849607 is an apocalyptic number.

121849607 is a deficient number, since it is larger than the sum of its proper divisors (16856953).

121849607 is a wasteful number, since it uses less digits than its factorization.

121849607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481653.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 121849607 is about 11038.5509465690. The cubic root of 121849607 is about 495.7636846329.

The spelling of 121849607 in words is "one hundred twenty-one million, eight hundred forty-nine thousand, six hundred seven".

Divisors: 1 11 23 253 481619 5297809 11077237 121849607