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52427543 = 77489649
BaseRepresentation
bin1100011111111…
…1101100010111
310122122121001212
43013333230113
5101410140133
65111412035
71204424660
oct307775427
9118577055
1052427543
1127659653
121568401b
13ab2831c
146d6a367
154909148
hex31ffb17

52427543 has 4 divisors (see below), whose sum is σ = 59917200. Its totient is φ = 44937888.

The previous prime is 52427519. The next prime is 52427581. The reversal of 52427543 is 34572425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52427543 - 220 = 51378967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52429543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3744818 + ... + 3744831.

It is an arithmetic number, because the mean of its divisors is an integer number (14979300).

Almost surely, 252427543 is an apocalyptic number.

52427543 is a deficient number, since it is larger than the sum of its proper divisors (7489657).

52427543 is an equidigital number, since it uses as much as digits as its factorization.

52427543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489656.

The product of its digits is 33600, while the sum is 32.

The square root of 52427543 is about 7240.6866387104. The cubic root of 52427543 is about 374.2712793457.

Adding to 52427543 its reverse (34572425), we get a palindrome (86999968).

The spelling of 52427543 in words is "fifty-two million, four hundred twenty-seven thousand, five hundred forty-three".

Divisors: 1 7 7489649 52427543