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13525223 = 29676961
BaseRepresentation
bin110011100110…
…000011100111
3221110011010012
4303212003213
511430301343
61201520435
7222651065
oct63460347
927404105
1013525223
1176a8778
12464311b
132a572ba
141b21035
1512c2718
hexce60e7

13525223 has 8 divisors (see below), whose sum is σ = 14202480. Its totient is φ = 12862080.

The previous prime is 13525199. The next prime is 13525231. The reversal of 13525223 is 32252531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13525223 - 26 = 13525159 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525243) 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 7 ways as a sum of consecutive naturals, for example, 1538 + ... + 5423.

It is an arithmetic number, because the mean of its divisors is an integer number (1775310).

Almost surely, 213525223 is an apocalyptic number.

13525223 is a deficient number, since it is larger than the sum of its proper divisors (677257).

13525223 is an equidigital number, since it uses as much as digits as its factorization.

13525223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7057.

The product of its digits is 1800, while the sum is 23.

The square root of 13525223 is about 3677.6654279583. The cubic root of 13525223 is about 238.2583581903.

Adding to 13525223 its reverse (32252531), we get a palindrome (45777754).

The spelling of 13525223 in words is "thirteen million, five hundred twenty-five thousand, two hundred twenty-three".

Divisors: 1 29 67 1943 6961 201869 466387 13525223