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53140260 = 2235432479
BaseRepresentation
bin1100101010110…
…1101100100100
310200222210201210
43022231230210
5102100442020
65134551420
71213453605
oct312555444
9120883653
1053140260
1127aa6078
1215968570
13b017854
1470b3dac
1549ea3e0
hex32adb24

53140260 has 72 divisors (see below), whose sum is σ = 152651520. Its totient is φ = 13812288.

The previous prime is 53140253. The next prime is 53140271. The reversal of 53140260 is 6204135.

It is a happy number.

53140260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 110701 + ... + 111179.

It is an arithmetic number, because the mean of its divisors is an integer number (2120160).

Almost surely, 253140260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53140260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76325760).

53140260 is an abundant number, since it is smaller than the sum of its proper divisors (99511260).

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

53140260 is a wasteful number, since it uses less digits than its factorization.

53140260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53140260 is about 7289.7366207566. The cubic root of 53140260 is about 375.9596399262.

Adding to 53140260 its reverse (6204135), we get a palindrome (59344395).

The spelling of 53140260 in words is "fifty-three million, one hundred forty thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 479 516 645 860 958 1290 1437 1849 1916 2395 2580 2874 3698 4790 5547 5748 7185 7396 9245 9580 11094 14370 18490 20597 22188 27735 28740 36980 41194 55470 61791 82388 102985 110940 123582 205970 247164 308955 411940 617910 885671 1235820 1771342 2657013 3542684 4428355 5314026 8856710 10628052 13285065 17713420 26570130 53140260