Search a number
-
+
12225379 = 191036247
BaseRepresentation
bin101110101000…
…101101100011
3212000010001211
4232220231203
511112203004
61114010551
7205625335
oct56505543
925003054
1012225379
1169a0121
124116a57
1326c076a
1418a3455
151117504
hexba8b63

12225379 has 8 divisors (see below), whose sum is σ = 12995840. Its totient is φ = 11467656.

The previous prime is 12225371. The next prime is 12225407. The reversal of 12225379 is 97352221.

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 12225379 - 23 = 12225371 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 12225379.

It is not an unprimeable number, because it can be changed into a prime (12225371) 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, 1167 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (1624480).

Almost surely, 212225379 is an apocalyptic number.

12225379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12225379 is a deficient number, since it is larger than the sum of its proper divisors (770461).

12225379 is a wasteful number, since it uses less digits than its factorization.

12225379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369.

The product of its digits is 7560, while the sum is 31.

The square root of 12225379 is about 3496.4809451790. The cubic root of 12225379 is about 230.3672708119.

The spelling of 12225379 in words is "twelve million, two hundred twenty-five thousand, three hundred seventy-nine".

Divisors: 1 19 103 1957 6247 118693 643441 12225379