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54538385 = 511991607
BaseRepresentation
bin1101000000001…
…1000010010001
310210121211121012
43100003002101
5102430212020
65224540305
71231366016
oct320030221
9123554535
1054538385
1128870550
1216321695
13b3b7045
14735970d
154bc47c5
hex3403091

54538385 has 8 divisors (see below), whose sum is σ = 71395776. Its totient is φ = 39664240.

The previous prime is 54538381. The next prime is 54538391. The reversal of 54538385 is 58383545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54538385 - 22 = 54538381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54538381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495749 + ... + 495858.

It is an arithmetic number, because the mean of its divisors is an integer number (8924472).

Almost surely, 254538385 is an apocalyptic number.

54538385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54538385 is a deficient number, since it is larger than the sum of its proper divisors (16857391).

54538385 is a wasteful number, since it uses less digits than its factorization.

54538385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991623.

The product of its digits is 288000, while the sum is 41.

The square root of 54538385 is about 7385.0108327612. The cubic root of 54538385 is about 379.2283162380.

The spelling of 54538385 in words is "fifty-four million, five hundred thirty-eight thousand, three hundred eighty-five".

Divisors: 1 5 11 55 991607 4958035 10907677 54538385