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12741139 = 149233367
BaseRepresentation
bin110000100110…
…101000010011
3212222022120001
4300212220103
511230204024
61133030431
7213204115
oct60465023
925868501
1012741139
117212674
124325417
132841448
1419993b5
1511ba244
hexc26a13

12741139 has 8 divisors (see below), whose sum is σ = 12916800. Its totient is φ = 12566976.

The previous prime is 12741107. The next prime is 12741167. The reversal of 12741139 is 93114721.

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 12741139 - 25 = 12741107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12741539) 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, 34534 + ... + 34900.

It is an arithmetic number, because the mean of its divisors is an integer number (1614600).

Almost surely, 212741139 is an apocalyptic number.

12741139 is a deficient number, since it is larger than the sum of its proper divisors (175661).

12741139 is a wasteful number, since it uses less digits than its factorization.

12741139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its digits is 1512, while the sum is 28.

The square root of 12741139 is about 3569.4732104332. The cubic root of 12741139 is about 233.5623042614.

It can be divided in two parts, 12741 and 139, that added together give a triangular number (12880 = T160).

The spelling of 12741139 in words is "twelve million, seven hundred forty-one thousand, one hundred thirty-nine".

Divisors: 1 149 233 367 34717 54683 85511 12741139