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13745293 = 13998887
BaseRepresentation
bin110100011011…
…110010001101
3221212022222221
4310123302031
512004322133
61210335341
7224555512
oct64336215
927768887
1013745293
117839051
12472a551
132b03513
141b7b309
151317a2d
hexd1bc8d

13745293 has 4 divisors (see below), whose sum is σ = 13844320. Its totient is φ = 13646268.

The previous prime is 13745287. The next prime is 13745309. The reversal of 13745293 is 39254731.

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.

It is a cyclic number.

It is not a de Polignac number, because 13745293 - 25 = 13745261 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 (13745203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49305 + ... + 49582.

It is an arithmetic number, because the mean of its divisors is an integer number (3461080).

Almost surely, 213745293 is an apocalyptic number.

It is an amenable number.

13745293 is a deficient number, since it is larger than the sum of its proper divisors (99027).

13745293 is an equidigital number, since it uses as much as digits as its factorization.

13745293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99026.

The product of its digits is 22680, while the sum is 34.

The square root of 13745293 is about 3707.4644974699. The cubic root of 13745293 is about 239.5436525049.

The spelling of 13745293 in words is "thirteen million, seven hundred forty-five thousand, two hundred ninety-three".

Divisors: 1 139 98887 13745293