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121414245 = 358990947
BaseRepresentation
bin1110011110010…
…10001001100101
322110110111000220
413033022021211
5222040223440
620014154553
73003001251
oct717121145
9273414026
10121414245
1162598357
12347b2a59
131c200864
14121a7261
15a9d48d0
hex73ca265

121414245 has 16 divisors (see below), whose sum is σ = 196447680. Its totient is φ = 64025984.

The previous prime is 121414211. The next prime is 121414247. The reversal of 121414245 is 542414121.

It is a cyclic number.

It is not a de Polignac number, because 121414245 - 219 = 120889957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121414247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44139 + ... + 46808.

It is an arithmetic number, because the mean of its divisors is an integer number (12277980).

Almost surely, 2121414245 is an apocalyptic number.

121414245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121414245 is a deficient number, since it is larger than the sum of its proper divisors (75033435).

121414245 is an equidigital number, since it uses as much as digits as its factorization.

121414245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91044.

The product of its digits is 1280, while the sum is 24.

The square root of 121414245 is about 11018.8132301079. The cubic root of 121414245 is about 495.1725344885.

Adding to 121414245 its reverse (542414121), we get a palindrome (663828366).

The spelling of 121414245 in words is "one hundred twenty-one million, four hundred fourteen thousand, two hundred forty-five".

Divisors: 1 3 5 15 89 267 445 1335 90947 272841 454735 1364205 8094283 24282849 40471415 121414245