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13545045 = 325232569
BaseRepresentation
bin110011101010…
…111001010101
3221111011022100
4303222321111
511431420140
61202152313
7223062633
oct63527125
927434270
1013545045
117711658
124652699
132a63327
141b28353
1512c8530
hexceae55

13545045 has 36 divisors (see below), whose sum is σ = 24586380. Its totient is φ = 6897792.

The previous prime is 13545029. The next prime is 13545061. The reversal of 13545045 is 54054531.

It is an interprime number because it is at equal distance from previous prime (13545029) and next prime (13545061).

It can be written as a sum of positive squares in 2 ways, for example, as 3470769 + 10074276 = 1863^2 + 3174^2 .

It is not a de Polignac number, because 13545045 - 24 = 13545029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23521 + ... + 24089.

It is an arithmetic number, because the mean of its divisors is an integer number (682955).

Almost surely, 213545045 is an apocalyptic number.

13545045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13545045 is a deficient number, since it is larger than the sum of its proper divisors (11041335).

13545045 is a wasteful number, since it uses less digits than its factorization.

13545045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 13545045 is about 3680.3593574541. The cubic root of 13545045 is about 238.3746951975.

Adding to 13545045 its reverse (54054531), we get a palindrome (67599576).

The spelling of 13545045 in words is "thirteen million, five hundred forty-five thousand, forty-five".

Divisors: 1 3 5 9 15 23 45 69 115 207 345 529 569 1035 1587 1707 2645 2845 4761 5121 7935 8535 13087 23805 25605 39261 65435 117783 196305 301001 588915 903003 1505005 2709009 4515015 13545045