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52439085 = 3256131901
BaseRepresentation
bin1100100000001…
…0100000101101
310122200011220100
43020002200231
5101411022320
65111541313
71204503426
oct310024055
9118604810
1052439085
1127667296
121568a839
13ab3065a
146d7064d
15490c790
hex320282d

52439085 has 24 divisors (see below), whose sum is σ = 91090584. Its totient is φ = 27907200.

The previous prime is 52439083. The next prime is 52439131. The reversal of 52439085 is 58093425.

It can be written as a sum of positive squares in 4 ways, for example, as 4247721 + 48191364 = 2061^2 + 6942^2 .

It is not a de Polignac number, because 52439085 - 21 = 52439083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52439083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26635 + ... + 28535.

It is an arithmetic number, because the mean of its divisors is an integer number (3795441).

Almost surely, 252439085 is an apocalyptic number.

It is an amenable number.

52439085 is a deficient number, since it is larger than the sum of its proper divisors (38651499).

52439085 is a wasteful number, since it uses less digits than its factorization.

52439085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525 (or 2522 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 52439085 is about 7241.4836187069. The cubic root of 52439085 is about 374.2987427863.

The spelling of 52439085 in words is "fifty-two million, four hundred thirty-nine thousand, eighty-five".

Divisors: 1 3 5 9 15 45 613 1839 1901 3065 5517 5703 9195 9505 17109 27585 28515 85545 1165313 3495939 5826565 10487817 17479695 52439085