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54316985 = 570115497
BaseRepresentation
bin1100111100110…
…0111110111001
310210012120220012
43033030332321
5102401120420
65220111305
71226454362
oct317147671
9123176805
1054316985
112872a178
1216235535
13b33a338
1472dcb69
154b7ddc5
hex33ccfb9

54316985 has 8 divisors (see below), whose sum is σ = 65277576. Its totient is φ = 43388800.

The previous prime is 54316981. The next prime is 54316987. The reversal of 54316985 is 58961345.

It can be written as a sum of positive squares in 4 ways, for example, as 29506624 + 24810361 = 5432^2 + 4981^2 .

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

It is not a de Polignac number, because 54316985 - 22 = 54316981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54316981) 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 7 ways as a sum of consecutive naturals, for example, 4244 + ... + 11253.

It is an arithmetic number, because the mean of its divisors is an integer number (8159697).

Almost surely, 254316985 is an apocalyptic number.

It is an amenable number.

54316985 is a deficient number, since it is larger than the sum of its proper divisors (10960591).

54316985 is a wasteful number, since it uses less digits than its factorization.

54316985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16203.

The product of its digits is 129600, while the sum is 41.

The square root of 54316985 is about 7370.0057666192. The cubic root of 54316985 is about 378.7144578469.

The spelling of 54316985 in words is "fifty-four million, three hundred sixteen thousand, nine hundred eighty-five".

Divisors: 1 5 701 3505 15497 77485 10863397 54316985