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12249741 = 371734313
BaseRepresentation
bin101110101110…
…101010001101
3212001100111010
4232232222031
511113442431
61114315433
7206056350
oct56565215
925040433
1012249741
116a07459
124128b79
1326cb88a
1418ac297
15111e846
hexbaea8d

12249741 has 16 divisors (see below), whose sum is σ = 19764864. Its totient is φ = 6587904.

The previous prime is 12249739. The next prime is 12249749. The reversal of 12249741 is 14794221.

It is not a de Polignac number, because 12249741 - 21 = 12249739 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12249699 and 12249708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12249749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16800 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (1235304).

Almost surely, 212249741 is an apocalyptic number.

It is an amenable number.

12249741 is a deficient number, since it is larger than the sum of its proper divisors (7515123).

12249741 is a wasteful number, since it uses less digits than its factorization.

12249741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34340.

The product of its digits is 4032, while the sum is 30.

The square root of 12249741 is about 3499.9629998044. The cubic root of 12249741 is about 230.5201899615.

The spelling of 12249741 in words is "twelve million, two hundred forty-nine thousand, seven hundred forty-one".

Divisors: 1 3 7 17 21 51 119 357 34313 102939 240191 583321 720573 1749963 4083247 12249741