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12214529 = 83147163
BaseRepresentation
bin101110100110…
…000100000001
3211222120011222
4232212010001
511111331104
61113444425
7205551605
oct56460401
924876158
1012214529
116992a58
124110715
1326b8842
14189d505
1511141be
hexba6101

12214529 has 4 divisors (see below), whose sum is σ = 12361776. Its totient is φ = 12067284.

The previous prime is 12214523. The next prime is 12214561. The reversal of 12214529 is 92541221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92541221 = 891039789.

It is a cyclic number.

It is not a de Polignac number, because 12214529 - 28 = 12214273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12214498 and 12214507.

It is not an unprimeable number, because it can be changed into a prime (12214523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73499 + ... + 73664.

It is an arithmetic number, because the mean of its divisors is an integer number (3090444).

Almost surely, 212214529 is an apocalyptic number.

It is an amenable number.

12214529 is a deficient number, since it is larger than the sum of its proper divisors (147247).

12214529 is an equidigital number, since it uses as much as digits as its factorization.

12214529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147246.

The product of its digits is 1440, while the sum is 26.

The square root of 12214529 is about 3494.9290407675. The cubic root of 12214529 is about 230.2991004731.

The spelling of 12214529 in words is "twelve million, two hundred fourteen thousand, five hundred twenty-nine".

Divisors: 1 83 147163 12214529