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13654645 = 52730929
BaseRepresentation
bin110100000101…
…101001110101
3221200201122121
4310011221311
511443422040
61204355541
7224030314
oct64055165
927621577
1013654645
117786a34
1246a5bb1
132aa1194
141b5627b
1512eac4a
hexd05a75

13654645 has 4 divisors (see below), whose sum is σ = 16385580. Its totient is φ = 10923712.

The previous prime is 13654643. The next prime is 13654687. The reversal of 13654645 is 54645631.

13654645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1425636 + 12229009 = 1194^2 + 3497^2 .

It is a cyclic number.

It is not a de Polignac number, because 13654645 - 21 = 13654643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13654645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13654643) 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, 1365460 + ... + 1365469.

It is an arithmetic number, because the mean of its divisors is an integer number (4096395).

Almost surely, 213654645 is an apocalyptic number.

It is an amenable number.

13654645 is a deficient number, since it is larger than the sum of its proper divisors (2730935).

13654645 is an equidigital number, since it uses as much as digits as its factorization.

13654645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730934.

The product of its digits is 43200, while the sum is 34.

The square root of 13654645 is about 3695.2192086533. The cubic root of 13654645 is about 239.0159066927.

The spelling of 13654645 in words is "thirteen million, six hundred fifty-four thousand, six hundred forty-five".

Divisors: 1 5 2730929 13654645