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52839136 = 257235889
BaseRepresentation
bin1100100110010…
…0001011100000
310200102111200001
43021210023200
5102011323021
65124305344
71211060650
oct311441340
9120374601
1052839136
112790a909
1215842254
13ac4077c
147036360
15498b091
hex32642e0

52839136 has 24 divisors (see below), whose sum is σ = 118888560. Its totient is φ = 22645248.

The previous prime is 52839113. The next prime is 52839151. The reversal of 52839136 is 63193825.

It is a junction number, because it is equal to n+sod(n) for n = 52839095 and 52839104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117721 + ... + 118168.

It is an arithmetic number, because the mean of its divisors is an integer number (4953690).

Almost surely, 252839136 is an apocalyptic number.

52839136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52839136 is an abundant number, since it is smaller than the sum of its proper divisors (66049424).

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

52839136 is a wasteful number, since it uses less digits than its factorization.

52839136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235906 (or 235898 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 52839136 is about 7269.0533083752. The cubic root of 52839136 is about 375.2481581143.

It can be divided in two parts, 52839 and 136, that added together give a triangular number (52975 = T325).

The spelling of 52839136 in words is "fifty-two million, eight hundred thirty-nine thousand, one hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 235889 471778 943556 1651223 1887112 3302446 3774224 6604892 7548448 13209784 26419568 52839136