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12222825 = 352162971
BaseRepresentation
bin101110101000…
…000101101001
3211222222120020
4232220011221
511112112300
61113551053
7205615026
oct56500551
924888506
1012222825
11699920a
124115489
1326bc554
1418a254d
1511168a0
hexba8169

12222825 has 12 divisors (see below), whose sum is σ = 20208528. Its totient is φ = 6518800.

The previous prime is 12222823. The next prime is 12222827. The reversal of 12222825 is 52822221.

It is an interprime number because it is at equal distance from previous prime (12222823) and next prime (12222827).

It is not a de Polignac number, because 12222825 - 21 = 12222823 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12222795 and 12222804.

It is not an unprimeable number, because it can be changed into a prime (12222823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81411 + ... + 81560.

It is an arithmetic number, because the mean of its divisors is an integer number (1684044).

Almost surely, 212222825 is an apocalyptic number.

12222825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12222825 is a deficient number, since it is larger than the sum of its proper divisors (7985703).

12222825 is a wasteful number, since it uses less digits than its factorization.

12222825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162984 (or 162979 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 12222825 is about 3496.1157017467. The cubic root of 12222825 is about 230.3512277104.

The spelling of 12222825 in words is "twelve million, two hundred twenty-two thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 162971 488913 814855 2444565 4074275 12222825