Search a number
-
+
57390193 = 711037433
BaseRepresentation
bin1101101011101…
…1010001110001
310222222201112201
43122323101301
5104142441233
65410023201
71264544230
oct332732161
9128881481
1057390193
112a439113
1217277b01
13bb750c3
14789cb17
15508977d
hex36bb471

57390193 has 8 divisors (see below), whose sum is σ = 65657088. Its totient is φ = 49140384.

The previous prime is 57390167. The next prime is 57390197. The reversal of 57390193 is 39109375.

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 57390193 - 25 = 57390161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57390197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4005 + ... + 11437.

It is an arithmetic number, because the mean of its divisors is an integer number (8207136).

Almost surely, 257390193 is an apocalyptic number.

It is an amenable number.

57390193 is a deficient number, since it is larger than the sum of its proper divisors (8266895).

57390193 is a wasteful number, since it uses less digits than its factorization.

57390193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8543.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 57390193 is about 7575.6315248301. The cubic root of 57390193 is about 385.7262795865.

The spelling of 57390193 in words is "fifty-seven million, three hundred ninety thousand, one hundred ninety-three".

Divisors: 1 7 1103 7433 7721 52031 8198599 57390193