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121514223 = 347861803
BaseRepresentation
bin1110011111000…
…10100011101111
322110122120011210
413033202203233
5222101423343
620020245503
73003565605
oct717424357
9273576153
10121514223
1162656486
1234840893
131c23720c
14121d1875
15aa04333
hex73e28ef

121514223 has 8 divisors (see below), whose sum is σ = 165466368. Its totient is φ = 79285784.

The previous prime is 121514219. The next prime is 121514233. The reversal of 121514223 is 322415121.

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 121514223 - 22 = 121514219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121514223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121514233) 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, 430761 + ... + 431042.

It is an arithmetic number, because the mean of its divisors is an integer number (20683296).

Almost surely, 2121514223 is an apocalyptic number.

121514223 is a deficient number, since it is larger than the sum of its proper divisors (43952145).

121514223 is an equidigital number, since it uses as much as digits as its factorization.

121514223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861853.

The product of its digits is 480, while the sum is 21.

The square root of 121514223 is about 11023.3489920260. The cubic root of 121514223 is about 495.3084130457.

Adding to 121514223 its reverse (322415121), we get a palindrome (443929344).

The spelling of 121514223 in words is "one hundred twenty-one million, five hundred fourteen thousand, two hundred twenty-three".

Divisors: 1 3 47 141 861803 2585409 40504741 121514223