Search a number
-
+
57235390 = 255723539
BaseRepresentation
bin1101101001010…
…1011110111110
310222200212012021
43122111132332
5104123013030
65402430354
71263331012
oct332253676
9128625167
1057235390
112a342883
12172023ba
13bb1c7c4
14785c542
15505897a
hex36957be

57235390 has 8 divisors (see below), whose sum is σ = 103023720. Its totient is φ = 22894152.

The previous prime is 57235363. The next prime is 57235427. The reversal of 57235390 is 9353275.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861760 + ... + 2861779.

It is an arithmetic number, because the mean of its divisors is an integer number (12877965).

Almost surely, 257235390 is an apocalyptic number.

57235390 is a deficient number, since it is larger than the sum of its proper divisors (45788330).

57235390 is a wasteful number, since it uses less digits than its factorization.

57235390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723546.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 57235390 is about 7565.4074576324. The cubic root of 57235390 is about 385.3791508586.

The spelling of 57235390 in words is "fifty-seven million, two hundred thirty-five thousand, three hundred ninety".

Divisors: 1 2 5 10 5723539 11447078 28617695 57235390