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13745269 = 16782307
BaseRepresentation
bin110100011011…
…110001110101
3221212022222001
4310123301311
512004322034
61210335301
7224555446
oct64336165
927768861
1013745269
11783902a
12472a531
132b034c5
141b7b2cd
151317a14
hexd1bc75

13745269 has 4 divisors (see below), whose sum is σ = 13827744. Its totient is φ = 13662796.

The previous prime is 13745261. The next prime is 13745279. The reversal of 13745269 is 96254731.

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 13745269 - 23 = 13745261 is a prime.

It is a super-2 number, since 2×137452692 = 377864839764722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40987 + ... + 41320.

It is an arithmetic number, because the mean of its divisors is an integer number (3456936).

Almost surely, 213745269 is an apocalyptic number.

It is an amenable number.

13745269 is a deficient number, since it is larger than the sum of its proper divisors (82475).

13745269 is an equidigital number, since it uses as much as digits as its factorization.

13745269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82474.

The product of its digits is 45360, while the sum is 37.

The square root of 13745269 is about 3707.4612607551. The cubic root of 13745269 is about 239.5435130863.

The spelling of 13745269 in words is "thirteen million, seven hundred forty-five thousand, two hundred sixty-nine".

Divisors: 1 167 82307 13745269