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52697065 = 537443643
BaseRepresentation
bin1100100100000…
…1011111101001
310200011021210011
43021001133221
5101442301230
65121251521
71206626521
oct311013751
9120137704
1052697065
11278230a3
1215793ba1
13abc0bc5
146dda681
15495de2a
hex32417e9

52697065 has 16 divisors (see below), whose sum is σ = 65193408. Its totient is φ = 40862016.

The previous prime is 52697023. The next prime is 52697069. The reversal of 52697065 is 56079625.

52697065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52697065 - 211 = 52695017 is a prime.

It is a super-2 number, since 2×526970652 = 5553961319228450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52697069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81634 + ... + 82276.

It is an arithmetic number, because the mean of its divisors is an integer number (4074588).

Almost surely, 252697065 is an apocalyptic number.

It is an amenable number.

52697065 is a deficient number, since it is larger than the sum of its proper divisors (12496343).

52697065 is a wasteful number, since it uses less digits than its factorization.

52697065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 52697065 is about 7259.2744127771. The cubic root of 52697065 is about 374.9115406163.

The spelling of 52697065 in words is "fifty-two million, six hundred ninety-seven thousand, sixty-five".

Divisors: 1 5 37 185 443 643 2215 3215 16391 23791 81955 118955 284849 1424245 10539413 52697065