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52312512 = 263738923
BaseRepresentation
bin1100011110001…
…1100111000000
310122102202021110
43013203213000
5101343000022
65105123320
71203435420
oct307434700
9118382243
1052312512
112759018a
1215629540
13aab7b65
146d3a480
1548d500c
hex31e39c0

52312512 has 56 divisors (see below), whose sum is σ = 158187136. Its totient is φ = 14946048.

The previous prime is 52312501. The next prime is 52312517. The reversal of 52312512 is 21521325.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52312517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18118 + ... + 20805.

Almost surely, 252312512 is an apocalyptic number.

It is an amenable number.

52312512 is an abundant number, since it is smaller than the sum of its proper divisors (105874624).

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

52312512 is a wasteful number, since it uses less digits than its factorization.

52312512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38945 (or 38935 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 52312512 is about 7232.7389003060. The cubic root of 52312512 is about 373.9973500151.

Adding to 52312512 its reverse (21521325), we get a palindrome (73833837).

The spelling of 52312512 in words is "fifty-two million, three hundred twelve thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 38923 77846 116769 155692 233538 272461 311384 467076 544922 622768 817383 934152 1089844 1245536 1634766 1868304 2179688 2491072 3269532 3736608 4359376 6539064 7473216 8718752 13078128 17437504 26156256 52312512