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13030545 = 3511151523
BaseRepresentation
bin110001101101…
…010010010001
3220112000112210
4301231102101
511313434140
61143142333
7215520633
oct61552221
926460483
1013030545
1173a0050
1244449a9
1329130a8
141a32a53
151225d80
hexc6d491

13030545 has 32 divisors (see below), whose sum is σ = 22938624. Its totient is φ = 6264000.

The previous prime is 13030543. The next prime is 13030547. The reversal of 13030545 is 54503031.

13030545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13030543) and next prime (13030547).

It is not a de Polignac number, because 13030545 - 21 = 13030543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13030543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24654 + ... + 25176.

It is an arithmetic number, because the mean of its divisors is an integer number (716832).

Almost surely, 213030545 is an apocalyptic number.

13030545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13030545 is a deficient number, since it is larger than the sum of its proper divisors (9908079).

13030545 is a wasteful number, since it uses less digits than its factorization.

13030545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 13030545 is about 3609.7846196138. The cubic root of 13030545 is about 235.3174824653.

Adding to 13030545 its reverse (54503031), we get a palindrome (67533576).

The spelling of 13030545 in words is "thirteen million, thirty thousand, five hundred forty-five".

Divisors: 1 3 5 11 15 33 55 151 165 453 523 755 1569 1661 2265 2615 4983 5753 7845 8305 17259 24915 28765 78973 86295 236919 394865 868703 1184595 2606109 4343515 13030545