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54573857 = 1331191709
BaseRepresentation
bin1101000000101…
…1101100100001
310210200122020222
43100023230201
5102432330412
65225412425
71231604312
oct320135441
9123618228
1054573857
1128895168
121633a115
13b3ca230
147368609
154bd0072
hex340bb21

54573857 has 16 divisors (see below), whose sum is σ = 61071360. Its totient is φ = 48427200.

The previous prime is 54573847. The next prime is 54573877. The reversal of 54573857 is 75837545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54573857 - 218 = 54311713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54573817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76619 + ... + 77327.

It is an arithmetic number, because the mean of its divisors is an integer number (3816960).

Almost surely, 254573857 is an apocalyptic number.

It is an amenable number.

54573857 is a deficient number, since it is larger than the sum of its proper divisors (6497503).

54573857 is a wasteful number, since it uses less digits than its factorization.

54573857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944.

The product of its digits is 588000, while the sum is 44.

The square root of 54573857 is about 7387.4120637744. The cubic root of 54573857 is about 379.3105156618.

The spelling of 54573857 in words is "fifty-four million, five hundred seventy-three thousand, eight hundred fifty-seven".

Divisors: 1 13 31 191 403 709 2483 5921 9217 21979 76973 135419 285727 1760447 4197989 54573857