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12754991 = 671271499
BaseRepresentation
bin110000101010…
…000000101111
3220000000120002
4300222000233
511231124431
61133214515
7213262364
oct60520057
926000502
1012754991
117222017
12433143b
132847842
1419a046b
1511be3cb
hexc2a02f

12754991 has 8 divisors (see below), whose sum is σ = 13056000. Its totient is φ = 12457368.

The previous prime is 12754979. The next prime is 12754993. The reversal of 12754991 is 19945721.

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 12754991 - 222 = 8560687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12754993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7760 + ... + 9258.

It is an arithmetic number, because the mean of its divisors is an integer number (1632000).

Almost surely, 212754991 is an apocalyptic number.

12754991 is a deficient number, since it is larger than the sum of its proper divisors (301009).

12754991 is a wasteful number, since it uses less digits than its factorization.

12754991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its digits is 22680, while the sum is 38.

The square root of 12754991 is about 3571.4130256805. The cubic root of 12754991 is about 233.6469155688.

The spelling of 12754991 in words is "twelve million, seven hundred fifty-four thousand, nine hundred ninety-one".

Divisors: 1 67 127 1499 8509 100433 190373 12754991