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53152812 = 22321786851
BaseRepresentation
bin1100101011000…
…0110000101100
310201000102221200
43022300300230
5102101342222
65135125500
71213535316
oct312606054
9121012850
1053152812
1128004549
1215973890
13b02048b
1470b87b6
1549edeac
hex32b0c2c

53152812 has 36 divisors (see below), whose sum is σ = 142263576. Its totient is φ = 16675200.

The previous prime is 53152811. The next prime is 53152871. The reversal of 53152812 is 21825135.

It is a happy number.

53152812 is a `hidden beast` number, since 531 + 52 + 81 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (53152811) 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 11 ways as a sum of consecutive naturals, for example, 42814 + ... + 44037.

It is an arithmetic number, because the mean of its divisors is an integer number (3951766).

Almost surely, 253152812 is an apocalyptic number.

It is an amenable number.

53152812 is an abundant number, since it is smaller than the sum of its proper divisors (89110764).

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

53152812 is a wasteful number, since it uses less digits than its factorization.

53152812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86878 (or 86873 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 53152812 is about 7290.5975063776. The cubic root of 53152812 is about 375.9892387896.

Adding to 53152812 its reverse (21825135), we get a palindrome (74977947).

The spelling of 53152812 in words is "fifty-three million, one hundred fifty-two thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 86851 173702 260553 347404 521106 781659 1042212 1476467 1563318 2952934 3126636 4429401 5905868 8858802 13288203 17717604 26576406 53152812