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12214525 = 523111571
BaseRepresentation
bin101110100110…
…000011111101
3211222120011211
4232212003331
511111331100
61113444421
7205551601
oct56460375
924876154
1012214525
116992a54
124110711
1326b883b
14189d501
1511141ba
hexba60fd

12214525 has 12 divisors (see below), whose sum is σ = 15204384. Its totient is φ = 9734000.

The previous prime is 12214523. The next prime is 12214561. The reversal of 12214525 is 52541221.

12214525 = T110 + T111 + ... + T420.

It is not a de Polignac number, because 12214525 - 21 = 12214523 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 12214496 and 12214505.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 6990 + ... + 8560.

It is an arithmetic number, because the mean of its divisors is an integer number (1267032).

Almost surely, 212214525 is an apocalyptic number.

It is an amenable number.

12214525 is a deficient number, since it is larger than the sum of its proper divisors (2989859).

12214525 is a wasteful number, since it uses less digits than its factorization.

12214525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1887 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 12214525 is about 3494.9284685098. The cubic root of 12214525 is about 230.2990753338.

Adding to 12214525 its reverse (52541221), we get a palindrome (64755746).

The spelling of 12214525 in words is "twelve million, two hundred fourteen thousand, five hundred twenty-five".

Divisors: 1 5 25 311 1555 1571 7775 7855 39275 488581 2442905 12214525