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52427665 = 531409827
BaseRepresentation
bin1100011111111…
…1101110010001
310122122121020101
43013333232101
5101410141130
65111412401
71204425223
oct307775621
9118577211
1052427665
1127659754
1215684101
13ab283b4
146d6a413
1549091ca
hex31ffb91

52427665 has 16 divisors (see below), whose sum is σ = 65180160. Its totient is φ = 40440960.

The previous prime is 52427663. The next prime is 52427671. The reversal of 52427665 is 56672425.

It is not a de Polignac number, because 52427665 - 21 = 52427663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52427663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62982 + ... + 63808.

It is an arithmetic number, because the mean of its divisors is an integer number (4073760).

Almost surely, 252427665 is an apocalyptic number.

It is an amenable number.

52427665 is a deficient number, since it is larger than the sum of its proper divisors (12752495).

52427665 is a wasteful number, since it uses less digits than its factorization.

52427665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its digits is 100800, while the sum is 37.

The square root of 52427665 is about 7240.6950633209. The cubic root of 52427665 is about 374.2715696578.

The spelling of 52427665 in words is "fifty-two million, four hundred twenty-seven thousand, six hundred sixty-five".

Divisors: 1 5 31 155 409 827 2045 4135 12679 25637 63395 128185 338243 1691215 10485533 52427665