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13534245 = 325300761
BaseRepresentation
bin110011101000…
…010000100101
3221110121111100
4303220100211
511431043440
61202030313
7223016304
oct63502045
927417440
1013534245
11770452a
124648399
132a5b43a
141b2443b
1512c5230
hexce8425

13534245 has 12 divisors (see below), whose sum is σ = 23459436. Its totient is φ = 7218240.

The previous prime is 13534231. The next prime is 13534247. The reversal of 13534245 is 54243531.

It can be written as a sum of positive squares in 2 ways, for example, as 4588164 + 8946081 = 2142^2 + 2991^2 .

It is a de Polignac number, because none of the positive numbers 2k-13534245 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13534247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150336 + ... + 150425.

It is an arithmetic number, because the mean of its divisors is an integer number (1954953).

Almost surely, 213534245 is an apocalyptic number.

13534245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13534245 is a deficient number, since it is larger than the sum of its proper divisors (9925191).

13534245 is a wasteful number, since it uses less digits than its factorization.

13534245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300772 (or 300769 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 13534245 is about 3678.8918168383. The cubic root of 13534245 is about 238.3113231613.

Adding to 13534245 its reverse (54243531), we get a palindrome (67777776).

The spelling of 13534245 in words is "thirteen million, five hundred thirty-four thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 45 300761 902283 1503805 2706849 4511415 13534245