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121317041 = 389311869
BaseRepresentation
bin1110011101100…
…10011010110001
322110021112200202
413032302122301
5222024121131
620012124545
73002114666
oct716623261
9273245622
10121317041
116253131a
1234766755
131c198541
141217da6d
15a9b5bcb
hex73b26b1

121317041 has 4 divisors (see below), whose sum is σ = 121629300. Its totient is φ = 121004784.

The previous prime is 121317037. The next prime is 121317067. The reversal of 121317041 is 140713121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140713121 = 731927577.

It can be written as a sum of positive squares in 2 ways, for example, as 77704225 + 43612816 = 8815^2 + 6604^2 .

It is a cyclic number.

It is not a de Polignac number, because 121317041 - 22 = 121317037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121317541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155546 + ... + 156323.

It is an arithmetic number, because the mean of its divisors is an integer number (30407325).

Almost surely, 2121317041 is an apocalyptic number.

It is an amenable number.

121317041 is a deficient number, since it is larger than the sum of its proper divisors (312259).

121317041 is an equidigital number, since it uses as much as digits as its factorization.

121317041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312258.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 121317041 is about 11014.4015270917. The cubic root of 121317041 is about 495.0403544967.

The spelling of 121317041 in words is "one hundred twenty-one million, three hundred seventeen thousand, forty-one".

Divisors: 1 389 311869 121317041