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57738985 = 573158189
BaseRepresentation
bin1101110001000…
…0011011101001
311000122102222221
43130100123221
5104240121420
65421314041
71300526143
oct334203351
9130572887
1057738985
112a657177
1217405921
13bc67aa5
14794dc93
155107caa
hex37106e9

57738985 has 8 divisors (see below), whose sum is σ = 70236360. Its totient is φ = 45558144.

The previous prime is 57738979. The next prime is 57738991. The reversal of 57738985 is 58983775.

57738985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57738979) and next prime (57738991).

It can be written as a sum of positive squares in 4 ways, for example, as 6416089 + 51322896 = 2533^2 + 7164^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57738985 - 23 = 57738977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78730 + ... + 79459.

It is an arithmetic number, because the mean of its divisors is an integer number (8779545).

Almost surely, 257738985 is an apocalyptic number.

It is an amenable number.

57738985 is a deficient number, since it is larger than the sum of its proper divisors (12497375).

57738985 is a wasteful number, since it uses less digits than its factorization.

57738985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158267.

The product of its digits is 2116800, while the sum is 52.

The square root of 57738985 is about 7598.6173084318. The cubic root of 57738985 is about 386.5061259654.

The spelling of 57738985 in words is "fifty-seven million, seven hundred thirty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 73 365 158189 790945 11547797 57738985