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54724985 = 571563571
BaseRepresentation
bin1101000011000…
…0100101111001
310210222022120022
43100300211321
5103002144420
65232540225
71233104030
oct320604571
9123868508
1054724985
1128988767
12163b1675
13b450c63
1473a7717
154c0ec25
hex3430979

54724985 has 8 divisors (see below), whose sum is σ = 75051456. Its totient is φ = 37525680.

The previous prime is 54724979. The next prime is 54724987. The reversal of 54724985 is 58942745.

It is a happy number.

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

It is not a de Polignac number, because 54724985 - 210 = 54723961 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 (54724987) 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, 781751 + ... + 781820.

It is an arithmetic number, because the mean of its divisors is an integer number (9381432).

Almost surely, 254724985 is an apocalyptic number.

It is an amenable number.

54724985 is a deficient number, since it is larger than the sum of its proper divisors (20326471).

54724985 is a wasteful number, since it uses less digits than its factorization.

54724985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563583.

The product of its digits is 403200, while the sum is 44.

The square root of 54724985 is about 7397.6337432993. The cubic root of 54724985 is about 379.6603266581.

The spelling of 54724985 in words is "fifty-four million, seven hundred twenty-four thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 1563571 7817855 10944997 54724985