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13030542 = 2327195443
BaseRepresentation
bin110001101101…
…010010001110
3220112000112200
4301231102032
511313434132
61143142330
7215520630
oct61552216
926460480
1013030542
1173a0048
1244449a6
1329130a5
141a32a50
151225d7c
hexc6d48e

13030542 has 48 divisors (see below), whose sum is σ = 33970560. Its totient is φ = 3526416.

The previous prime is 13030513. The next prime is 13030543. The reversal of 13030542 is 24503031.

13030542 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (707720).

Almost surely, 213030542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13030542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16985280).

13030542 is an abundant number, since it is smaller than the sum of its proper divisors (20940018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13030542 is a wasteful number, since it uses less digits than its factorization.

13030542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477 (or 5474 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13030542 is about 3609.7842040765. The cubic root of 13030542 is about 235.3174644064.

Adding to 13030542 its reverse (24503031), we get a palindrome (37533573).

The spelling of 13030542 in words is "thirteen million, thirty thousand, five hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 57 63 114 126 133 171 266 342 399 798 1197 2394 5443 10886 16329 32658 38101 48987 76202 97974 103417 114303 206834 228606 310251 342909 620502 685818 723919 930753 1447838 1861506 2171757 4343514 6515271 13030542