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121425303 = 3231759787
BaseRepresentation
bin1110011110011…
…00110110010111
322110111001012110
413033030312113
5222041102203
620014322103
73003045426
oct717146627
9273431173
10121425303
11625a569a
12347b9333
131c2058bc
14121ab2bd
15a9d7d03
hex73ccd97

121425303 has 8 divisors (see below), whose sum is σ = 168939648. Its totient is φ = 77430584.

The previous prime is 121425289. The next prime is 121425307. The reversal of 121425303 is 303524121.

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

It is a cyclic number.

It is not a de Polignac number, because 121425303 - 210 = 121424279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121425303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121425307) 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, 879825 + ... + 879962.

It is an arithmetic number, because the mean of its divisors is an integer number (21117456).

Almost surely, 2121425303 is an apocalyptic number.

121425303 is a deficient number, since it is larger than the sum of its proper divisors (47514345).

121425303 is a wasteful number, since it uses less digits than its factorization.

121425303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759813.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 121425303 is about 11019.3149968589. The cubic root of 121425303 is about 495.1875669137.

Adding to 121425303 its reverse (303524121), we get a palindrome (424949424).

The spelling of 121425303 in words is "one hundred twenty-one million, four hundred twenty-five thousand, three hundred three".

Divisors: 1 3 23 69 1759787 5279361 40475101 121425303