Search a number
-
+
57004745 = 573115237
BaseRepresentation
bin1101100101110…
…1001011001001
310222021010210212
43121131023021
5104043122440
65353450505
71261350410
oct331351311
9128233725
1057004745
112a1a5566
1217110a35
13ba6b825
1477dc477
155010465
hex365d2c9

57004745 has 16 divisors (see below), whose sum is σ = 78444288. Its totient is φ = 38955840.

The previous prime is 57004721. The next prime is 57004747. The reversal of 57004745 is 54740075.

It is not a de Polignac number, because 57004745 - 210 = 57003721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57004747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8267 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (4902768).

Almost surely, 257004745 is an apocalyptic number.

It is an amenable number.

57004745 is a deficient number, since it is larger than the sum of its proper divisors (21439543).

57004745 is a wasteful number, since it uses less digits than its factorization.

57004745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57004745 is about 7550.1486740328. The cubic root of 57004745 is about 384.8607918594.

The spelling of 57004745 in words is "fifty-seven million, four thousand, seven hundred forty-five".

Divisors: 1 5 7 35 311 1555 2177 5237 10885 26185 36659 183295 1628707 8143535 11400949 57004745