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52384136 = 2372133633
BaseRepresentation
bin1100011111010…
…1000110001000
310122120101112012
43013311012020
5101402243021
65110435052
71204154300
oct307650610
9118511465
1052384136
1127629a82
1215662a88
13ab1163c
146d58600
1548eb35b
hex31f5188

52384136 has 24 divisors (see below), whose sum is σ = 114257070. Its totient is φ = 22450176.

The previous prime is 52384127. The next prime is 52384139. The reversal of 52384136 is 63148325.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 6280036 = 6790^2 + 2506^2 .

It is not an unprimeable number, because it can be changed into a prime (52384139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66425 + ... + 67208.

Almost surely, 252384136 is an apocalyptic number.

52384136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52384136 is an abundant number, since it is smaller than the sum of its proper divisors (61872934).

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

52384136 is a wasteful number, since it uses less digits than its factorization.

52384136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133653 (or 133642 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 52384136 is about 7237.6885813083. The cubic root of 52384136 is about 374.1679591051.

The spelling of 52384136 in words is "fifty-two million, three hundred eighty-four thousand, one hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 133633 267266 534532 935431 1069064 1870862 3741724 6548017 7483448 13096034 26192068 52384136