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12121363 = 412391237
BaseRepresentation
bin101110001111…
…010100010011
3211210211101101
4232033110103
511100340423
61111445231
7205013152
oct56172423
924724341
1012121363
116929a61
124086817
132685307
141877599
1510e67ad
hexb8f513

12121363 has 8 divisors (see below), whose sum is σ = 12479040. Its totient is φ = 11766720.

The previous prime is 12121337. The next prime is 12121367. The reversal of 12121363 is 36312121.

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 12121363 - 25 = 12121331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12121363.

It is not an unprimeable number, because it can be changed into a prime (12121367) 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, 9181 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (1559880).

Almost surely, 212121363 is an apocalyptic number.

12121363 is a deficient number, since it is larger than the sum of its proper divisors (357677).

12121363 is a wasteful number, since it uses less digits than its factorization.

12121363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517.

The product of its digits is 216, while the sum is 19.

The square root of 12121363 is about 3481.5747873628. The cubic root of 12121363 is about 229.7120719667.

Adding to 12121363 its reverse (36312121), we get a palindrome (48433484).

The spelling of 12121363 in words is "twelve million, one hundred twenty-one thousand, three hundred sixty-three".

Divisors: 1 41 239 1237 9799 50717 295643 12121363