Search a number
-
+
57000705 = 355371699
BaseRepresentation
bin1101100101110…
…0001100000001
310222020221021020
43121130030001
5104043010310
65353420053
71261332546
oct331341401
9128227236
1057000705
112a1a2523
121710a629
13ba69a38
1477dabcd
15500e170
hex365c301

57000705 has 16 divisors (see below), whose sum is σ = 92923200. Its totient is φ = 29826368.

The previous prime is 57000679. The next prime is 57000709. The reversal of 57000705 is 50700075.

It is a cyclic number.

It is not a de Polignac number, because 57000705 - 26 = 57000641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57000709) 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, 35055 + ... + 36644.

It is an arithmetic number, because the mean of its divisors is an integer number (5807700).

Almost surely, 257000705 is an apocalyptic number.

It is an amenable number.

57000705 is a deficient number, since it is larger than the sum of its proper divisors (35922495).

57000705 is a wasteful number, since it uses less digits than its factorization.

57000705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71760.

The product of its (nonzero) digits is 1225, while the sum is 24.

The square root of 57000705 is about 7549.8811248920. The cubic root of 57000705 is about 384.8516997839.

It can be divided in two parts, 5700070 and 5, that added together give a palindrome (5700075).

The spelling of 57000705 in words is "fifty-seven million, seven hundred five", and thus it is an aban number.

Divisors: 1 3 5 15 53 159 265 795 71699 215097 358495 1075485 3800047 11400141 19000235 57000705