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57260273 = 726119157
BaseRepresentation
bin1101101001101…
…1100011110001
310222202010022212
43122123203301
5104124312043
65403141505
71263463400
oct332334361
9128663285
1057260273
112a35a544
1217214895
13bb2ac25
147867637
155061018
hex369b8f1

57260273 has 12 divisors (see below), whose sum is σ = 67704372. Its totient is φ = 48273120.

The previous prime is 57260263. The next prime is 57260279. The reversal of 57260273 is 37206275.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1787569 + 55472704 = 1337^2 + 7448^2 .

It is not a de Polignac number, because 57260273 - 26 = 57260209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57260279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6590 + ... + 12567.

It is an arithmetic number, because the mean of its divisors is an integer number (5642031).

Almost surely, 257260273 is an apocalyptic number.

It is an amenable number.

57260273 is a deficient number, since it is larger than the sum of its proper divisors (10444099).

57260273 is a wasteful number, since it uses less digits than its factorization.

57260273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19232 (or 19225 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 57260273 is about 7567.0518037080. The cubic root of 57260273 is about 385.4349904367.

The spelling of 57260273 in words is "fifty-seven million, two hundred sixty thousand, two hundred seventy-three".

Divisors: 1 7 49 61 427 2989 19157 134099 938693 1168577 8180039 57260273