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53261152 = 257475059
BaseRepresentation
bin1100101100101…
…1001101100000
310201012221120021
43023023031200
5102113324102
65141323224
71214466220
oct313131540
9121187507
1053261152
112807898a
1215a06514
13b05a899
147106080
154a21137
hex32cb360

53261152 has 48 divisors (see below), whose sum is σ = 122411520. Its totient is φ = 22336128.

The previous prime is 53261149. The next prime is 53261171. The reversal of 53261152 is 25116235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7999 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (2550240).

Almost surely, 253261152 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 53261152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61205760).

53261152 is an abundant number, since it is smaller than the sum of its proper divisors (69150368).

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

53261152 is a wasteful number, since it uses less digits than its factorization.

53261152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123 (or 5115 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 53261152 is about 7298.0238421096. The cubic root of 53261152 is about 376.2445217982.

Adding to 53261152 its reverse (25116235), we get a palindrome (78377387).

The spelling of 53261152 in words is "fifty-three million, two hundred sixty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 32 47 56 94 112 188 224 329 376 658 752 1316 1504 2632 5059 5264 10118 10528 20236 35413 40472 70826 80944 141652 161888 237773 283304 475546 566608 951092 1133216 1664411 1902184 3328822 3804368 6657644 7608736 13315288 26630576 53261152