Search a number
-
+
57146959 = 397143947
BaseRepresentation
bin1101100111111…
…1111001001111
310222112100220001
43121333321033
5104112200314
65400505131
71262512132
oct331777117
9128470801
1057146959
112a2923a1
121717b1a7
13babb48c
147838219
15503c674
hex367fe4f

57146959 has 4 divisors (see below), whose sum is σ = 57291304. Its totient is φ = 57002616.

The previous prime is 57146953. The next prime is 57146963. The reversal of 57146959 is 95964175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57146959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57146953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71577 + ... + 72370.

It is an arithmetic number, because the mean of its divisors is an integer number (14322826).

Almost surely, 257146959 is an apocalyptic number.

57146959 is a deficient number, since it is larger than the sum of its proper divisors (144345).

57146959 is a wasteful number, since it uses less digits than its factorization.

57146959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144344.

The product of its digits is 340200, while the sum is 46.

The square root of 57146959 is about 7559.5607676637. The cubic root of 57146959 is about 385.1805730780.

The spelling of 57146959 in words is "fifty-seven million, one hundred forty-six thousand, nine hundred fifty-nine".

Divisors: 1 397 143947 57146959