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121316113 = 317949537
BaseRepresentation
bin1110011101100…
…10001100010001
322110021111102101
413032302030101
5222024103423
620012120401
73002112202
oct716621421
9273244371
10121316113
1162530656
1234766101
131c197ca9
141217d5a9
15a9b57ad
hex73b2311

121316113 has 8 divisors (see below), whose sum is σ = 126817280. Its totient is φ = 115914240.

The previous prime is 121316101. The next prime is 121316123. The reversal of 121316113 is 311613121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121316113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121316123) 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, 22320 + ... + 27217.

It is an arithmetic number, because the mean of its divisors is an integer number (15852160).

Almost surely, 2121316113 is an apocalyptic number.

It is an amenable number.

121316113 is a deficient number, since it is larger than the sum of its proper divisors (5501167).

121316113 is an equidigital number, since it uses as much as digits as its factorization.

121316113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49647.

The product of its digits is 108, while the sum is 19.

The square root of 121316113 is about 11014.3594003464. The cubic root of 121316113 is about 495.0390922430.

Adding to 121316113 its reverse (311613121), we get a palindrome (432929234).

The spelling of 121316113 in words is "one hundred twenty-one million, three hundred sixteen thousand, one hundred thirteen".

Divisors: 1 31 79 2449 49537 1535647 3913423 121316113