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13149077 = 23571699
BaseRepresentation
bin110010001010…
…001110010101
3220202001010212
4302022032111
511331232302
61145455205
7216523334
oct62121625
926661125
1013149077
117471107
1244a1505
132955026
141a63d1b
15124b052
hexc8a395

13149077 has 4 divisors (see below), whose sum is σ = 13720800. Its totient is φ = 12577356.

The previous prime is 13149067. The next prime is 13149091. The reversal of 13149077 is 77094131.

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: 77094131 = 425318127.

It is a cyclic number.

It is not a de Polignac number, because 13149077 - 222 = 8954773 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 (13149067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285827 + ... + 285872.

It is an arithmetic number, because the mean of its divisors is an integer number (3430200).

Almost surely, 213149077 is an apocalyptic number.

It is an amenable number.

13149077 is a deficient number, since it is larger than the sum of its proper divisors (571723).

13149077 is an equidigital number, since it uses as much as digits as its factorization.

13149077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571722.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 13149077 is about 3626.1656057053. The cubic root of 13149077 is about 236.0288495326.

The spelling of 13149077 in words is "thirteen million, one hundred forty-nine thousand, seventy-seven".

Divisors: 1 23 571699 13149077