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57727072 = 2513193719
BaseRepresentation
bin1101110000110…
…1100001100000
311000121211122201
43130031201200
5104234231242
65421142544
71300446334
oct334154140
9130554581
1057727072
112a649227
12173baa54
13bc62540
1479497c4
1551044b7
hex370d860

57727072 has 48 divisors (see below), whose sum is σ = 123197760. Its totient is φ = 26468352.

The previous prime is 57727063. The next prime is 57727093. The reversal of 57727072 is 27072775.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79929 + ... + 80647.

It is an arithmetic number, because the mean of its divisors is an integer number (2566620).

Almost surely, 257727072 is an apocalyptic number.

57727072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57727072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61598880).

57727072 is an abundant number, since it is smaller than the sum of its proper divisors (65470688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57727072 is a wasteful number, since it uses less digits than its factorization.

57727072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 48020, while the sum is 37.

The square root of 57727072 is about 7597.8333753775. The cubic root of 57727072 is about 386.4795421695.

The spelling of 57727072 in words is "fifty-seven million, seven hundred twenty-seven thousand, seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 193 208 386 416 719 772 1438 1544 2509 2876 3088 5018 5752 6176 9347 10036 11504 18694 20072 23008 37388 40144 74776 80288 138767 149552 277534 299104 555068 1110136 1803971 2220272 3607942 4440544 7215884 14431768 28863536 57727072